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Installation view of the Ancient Cinema exhibition

Ancient Cinema

A Metahistorical Fantasia

Could a collection of bronze, glass and painted artifacts recovered from the Croatian coast be remnants of an ancient Roman movie projector?

01 Introduction
Timeline of historical periods, from pyramid construction in Egypt to the dedication of the Lincoln Memorial

People often think historians find real stories in old records, while fiction writers invent them from scratch. Philosopher Hayden White notes that this idea is a myth: historians do not just discover the past; they actively invent and shape their narratives, too.(1)

Hollis Frampton, an American avant-garde filmmaker, photographer, writer and theoretician, tackled this problem in his essay, “For a Metahistory of Film: Commonplace Notes and Hypotheses.” He wrote that the true history of cinema includes every single film ever made, for any reason at all. A film historian cannot watch everything, but they cannot ignore anything either, or they will miss the point entirely.(2)

Because recording the full breadth of film history is impossible, Frampton looked outside traditional film theory for help. He turned to the writer Jorge Luis Borges.

To Borges, the Argentine master of short fiction, poetry and essays, history is not a straight line of hard facts. It exists only inside human memory, which is unstable, subjective, and always changing.

In his view, history and fiction bleed into one another, because we always imagine and reinterpret what happened; time splits into infinite possibilities rather than a single official story. Facts, to Borges, are just artificial constructs we lean on to make sense of the chaos.(3) He frequently wrote “fictions about fictions,” blurring the line between reality and illusion, often inventing fake books, imaginary authorities, or alternate histories.

Historians do not just discover the past;
they actively invent and shape their narratives, too.

Inspired by Borges, Frampton rejected linear timelines of movie history. Instead, he championed a playful, self-aware “metahistory” of cinema.

Frampton's theory of metahistory proposes that traditional film history is an illusion, and that a true cinematic lineage must be actively engineered.

Instead of listing dates and titles, his metahistory weaves together ideas, art, and events. It creates “rational fictions” — creative frameworks grounded in real evidence — that capture tactile, site-specific, lived human experiences of a place and time, instead of chasing an impossible, total record of the past.(4)

19th-century zoetrope with a hand-painted band showing a dancing figure in sequential frames
A hand-painted 19th-century zoetrope drum.
Muybridge zoopraxiscope disc depicting a horseback somersault in sequential frames
A Muybridge zoopraxiscope disc, "A Horseback Somersault," copyright 1893.

In his installation, Ancient Cinema, the Canadian artist, Henry Jesionka, takes on Frampton's metahistorical challenge and makes a plausible case – a rational fiction – for extending the history of cinema to the ancient world.

Jesionka fabricates a Graeco-Roman "film" projector consistent with the sophisticated technological and artistic skills of Greek and Roman artisans at the turn of the millennium, and he presents artifacts (inscribed coins, lamps, glass slides) to support his claim.

Jesionka creates a missing link in the recorded history of cinema to bridge the unacceptably large gap between Paleolithic cave art, in 32,000 BCE, and William Lincoln's zoopraxiscope, the first modern film projector, in 1867.

Although the installation is entirely speculative, it tackles the very real project of history and its construction.

Notes

1. White, Hayden. Metahistory: The Historical Imagination in Nineteenth-Century Europe. The Johns Hopkins University Press, 1973, p. 6.

2. Frampton, Hollis. Circles of Confusion: Film, Photography, Texts, 1968-1980, Visual Studies Workshop Press, 1983, p. 107.

3. “A fact is the indivisible module out of which systematic substitutes for experience are built,” writes Frampton elsewhere in “For A Metahistory of Film: Commonplace Notes and Hypotheses,” 1971. Artforum.

4. Meckler, Jeremy. For a Metahistory of Film Studies: On Hollis Frampton's Metahistory and the Development of Film Pedagogy at SUNY at Buffalo, La Furia Umana, 48.

02 Before cinema had a name
Painted lions hunting bison, Chauvet cave
Lions hunting bison, Chauvet cave, c. 37,000–33,000 years ago.

Paleolithic Cinema

"During the Old Stone Age, between 37,000 and 11,000 years ago, some of the most remarkable art ever conceived was etched or painted on the walls of caves in southern France and northern Spain," writes Judith Thurman in The New Yorker, in 2008. "After a visit to Lascaux, in the Dordogne, which was discovered in 1940, Picasso reportedly said to his guide, 'They've invented everything.' What those first artists invented was a language of signs for which there will never be a Rosetta stone; perspective, a technique that was not rediscovered until the Athenian Golden Age; and a bestiary of such vitality and finesse that, by the flicker of torchlight, the animals seem to surge from the walls, and move across them like figures in a magic lantern show (in that sense, the artists invented animation)." (1)

The filmmaker Werner Herzog was reportedly so intrigued by Thurman's article, he petitioned the French government the following year for permission to film in the Cave of Chauvet-Pont-d'Arc, in the South of France. The resulting film, Cave of Forgotten Dreams, was released in 2010.

Scene from Werner Herzog's Cave of Forgotten Dreams
Scene from Werner Herzog's "Cave of Forgotten Dreams".

"Among the film's most fascinating insights," writes Adam Cook, "is the discovery of how those who created the [cave] paintings would use torchlight and shadows, in conjunction with the images, as dramatic tools. One bison, as Herzog points out, is painted with eight legs, to give it a sense of motion. It is what he refers to as a 'proto-cinema,' and indeed all the elements are there, which when considering how old these works are in comparison to the cinema, is startling, and moving." (2)

"When our Magdalenian ancestors painted and etched the walls of caves in southern France and northern Spain, they were… making images that were essentially cinematic," writes Edward Wachtel in the abstract for his article, "The First Picture Show: Cinematic Aspects of Cave Art." "Their creations have generally been presented as still images — etchings, drawings, paintings — predecessors to photography. However, the tools and techniques they used, including brushes and blowguns, the irregular cave surfaces and lamps fueled by animal fat, conspired to create works and viewing conditions that made images that appeared to move, change color, dissolve, cut, appear and disappear. In short, they made cinematic images — precursors to film and television."(3)

Rhinos, Chauvet cave
Rhinos, Chauvet cave.

Other scholars agree and even theorize about the genesis of the proto-cinematic nature of cave art. Matt Gatton argues, in The Camera Obscura and the Origin of Art: The Case for Image Projection in the Paleolithic, that "harsh climates during the Paleolithic forced members of the human lineage to make rudimentary huts and tents. Survival depended on the ability to seal out the elements… [but] random holes in these rough shelters coincidentally and occasionally formed camera obscuras, projecting moving images inside the dwelling spaces," which were then traced or copied. (4)

Illustration of Paleolithic cave dwellers viewing a camera obscura projection of a bison, cast through a small opening in their shelter
Illustration of Gatton's camera obscura hypothesis: a bison outside is projected, inverted, onto a cave wall. Illustration by Matt Gatton.

Gatton's theory may be debatable; Herzog's Paleolithic fantasy is, ironically, somewhat more plausible: "Arguably, or for me," says Herzog, in an interview with Archaeology Magazine, "the greatest single sequence in all of film history [is] Fred Astaire dancing with his own shadows, and all of a sudden he stops and the shadows become independent and dance without him and he has to catch up with them. It's so quintessentially 'movie'. It can't get more beautiful. It's actually from Swing Time (1936).

Fred Astaire dancing with three giant shadow versions of himself, from the film Swing Time
Fred Astaire's shadow dance sequence from "Swing Time" (1936).

"And when you look at the [Chauvet] cave and certain panels, there's evidence of some fires on the ground. They're not for cooking. They were used for illumination. You have to step in front of these fires to look at the images, and when you move, you must see your own shadow. And immediately, Fred Astaire comes to mind — who did something 32,000 years later which is essentially what we can imagine for early Paleolithic people." (5)

Cinema Desires

Since ancient times, stargazers and astronomers have employed different models to describe the way in which time was harnessed to space, and dreamed about the possibility of seeing the universe in a way that could lately be described as cinematographic.

The recent discovery of the Nebra Sky Disk, which dates to the Bronze Age, around 1700 BCE, has astonished archeologists. The 32-centimeter-wide (12.6-inch) bronze disc with gold-leaf appliqués representing the sun, the moon, the stars, and what appears to be a mythological "solar boat," is the oldest visual representation of the cosmos known to date — two-hundred years earlier than the oldest known images found in Egypt.

Nebra Sky Disk
Nebra Sky Disk.

The symbols in the Nebra Star Disk "are all part of a complex European-wide belief system… whereby people looked at the heavens, worshipped them, worshipped the sun, worshipped the moon, [and] aligned their monuments on the sunrise or the moonrise," explains Miranda Aldhouse Green, Professor of Archaeology at Cardiff University. "And because Nebra has brought all these symbols together it tells us for the first time perhaps what people were really seeing, perceiving and believing."(6)

"The explanation of the disc's purpose sheds new light on the astronomical knowledge and abilities of the Bronze Age people, who used a combination of solar and lunar calendars as important indicators for agricultural seasons and passage of time," adds Harald Meller, State Archaeologist of Saxony-Anhalt.(7)

Cinema as a technology was preceded, long before its genesis,
by cinema as a desire…

Throughout recorded history, "a number of different pictorial techniques for depicting the unfolding of time in visual terms had been widely employed [by scientists]," writes Jimena Canales. "Most prominently, these included sequential images, blurred images (primarily of wheels and disks), slightly superimposed or side-by-side figures (often in single canvas or sheet), symbols of time or instantaneity (skulls, clocks, bubbles, and lightning) and bodily poses and severed body parts associated with direction and sequence (such as pointing, poking, pulling and jumping)."(8)

Most people, however, find the roots of cinematography in ancient technologies for entertainment and spectacle, not in science, adds Canales. Indeed, the Chinese are generally credited with inventing the proto-cinematic art form known as Shadow Play, or Shadow Puppetry, during the Han Dynasty (206 BCE – 220 CE) — although examples of Chinese "cinema" spheres, found in the Museo del Precinema in Padua, Italy, have been dated even earlier, to 500 BCE., and Plato, in his famous "Allegory of the Cave," written in 380 BCE, uses shadow play as a metaphor to distinguish between perception and knowledge.

Detail of a Chinese cinema sphere
Detail of a Chinese "cinema" sphere.
Shadow puppet theatre scene showing a silhouetted figure, dog, and vase beneath an arched pergola
Modern shadow theatre, descended from the same tradition of shadow play.

Some scholars date shadow play to the Paleolithic, emphasizing the role shadows played in re-animating cave art paintings. Whatever its true origin, Shadow Puppetry was subsequently spread by the Chinese, and later by the Turks and Egyptians, throughout much of the known world.

Canales, a professor at Harvard University, argues that the technical history of cinema is only one dimension of its evolution. "Scientists observe, develop theory and experiment," she writes, "but first they redraw metaphysical boundaries, redefining the very meaning of what is considered to be human, nonhuman, and beast. They shape the contours and alter hierarchies between the social, the political, the historical and the natural." (9)

Cinema as a technology was preceded, long before its genesis, by cinema as a desire — to capture the stars, to reproduce the world, and to share our dreams.

"Attention to desire," she writes, "permits us to explore the complex relation between discourse and things, dreams and reality, without having to focus exclusively on one or the other. The differences between what 'is' (the technical), what 'ought' (the ethical), and what 'could' be (the fantastical) led scientific research into new, unexpected directions. We must remember… that the "technical reality" of objects is only one aspect of a denser set of meanings. To the "technical reality" of cinematography, we [must] add the components of desire and anticipation — of finding a camera to capture the world in its own image." (10)

Notes

1. Thurman, Judith. First Impressions, The New Yorker, June 23, 2008.

2. Cook, Roger F. "Cinema Returns to the Source: Werner Herzog’s Cave of Forgotten Dreams," 2013.

3. Wachtel, Edward. The First Picture Show: Cinematic Aspects of Cave Art. Leonardo, Vol. 26, No. 2. 1993, p. 135-140.

4. Gatton, Matt. Paleo-Camera. 2005.

5. Zorich, Zach. Interview: Werner Herzog on the Birth of Art. Archaeology, Vol. 64, No. 2, March/April 2011.

6. BBC. Secrets of the Star Disc – transcript. 2004.

7. Anderle, Beth. "The Mysterious Nebra Star Disc," Archaeology@Suite101.

8. Canales, Jimena. "Desired Machines: Cinema and the World in Its Own Image," Science in Context, 24(3), 329-359. Cambridge University Press.

9. Canales, Jimena, op. cit.

10. Canales, J. Science in Context. op. cit.

03 What the ancients could actually build
Corroded remains of the Antikythera mechanism
The Antikythera mechanism, recovered from a shipwreck in 1901.

In 1901, just off the coast of the small island of Antikythera, a group of sponge divers discovered the wreck of a Roman merchant vessel filled with Greek treasure. Among the bounty was a device with precisely engineered gear wheels — a completely astonishing revelation for ancient Greece. The device, known as the Antikythera Mechanism is thought be a sophisticated celestial calculating machine.

According to John Seabrook, writing in The New Yorker, "Evidence derived from coins, amphorae, and other items of the cargo eventually allowed researchers to fix a date for the shipwreck: around the first half of the first century BCE, a time when the glorious civilization of ancient Greece was on the wane, following the Roman conquest of the Greek cities."(1)

"The Antikythera Mechanism would be remarkable even if it was a less clever thing than it is because there is so little like it physically preserved or even described in ancient books," says Alexander Jones of the Institute for the Study of the Ancient World in a recent report.(2) Indeed, technological artifacts of similar complexity did not reappear until the 14th century, when mechanical astronomical clocks were built in Europe. (3)

One is struck by the reluctance of modern investigators to credit the ancients with technological skill.

"If it hadn't been discovered when it was, in 1901, no one would possibly believe that it could exist because it's so sophisticated," adds Tony Freeth of the Antikythera Mechanism Research Project.(4) Seabrook concurs, "Looking back over the first fifty years of research on the Mechanism, one is struck by the reluctance of modern investigators to credit the ancients with technological skill. The Greeks are thought to have possessed crude wooden gears, which were used to lift heavy building materials, haul up water, and hoist anchors, but historians do not generally credit them with possessing scientifically precise gears — gears cut from metal and arranged into complex 'gear trains' capable of carrying motion from one driveshaft to another.

"In fact," Seabrook continues, "there is evidence that earlier civilizations were much more technically adept than we imagine they were." As Peter James and Nick Thorpe point out in Ancient Inventions, published in 1994, some ancient civilizations were aware of natural electric phenomena and the invisible powers of magnetism (though neither concept was understood). The Greeks had a tradition of great inventors, beginning with Archimedes of Syracuse (c. 287-212 BCE), who, in addition to his famous planetarium, is believed to have invented a terrible clawed device made up of large hooks, submerged in the sea, and attached by a cable to a terrestrial hoist; the device was capable of lifting the bow of a fully loaded warship into the air and smashing it down on the water — the Greeks reportedly used the weapon during the Roman siege of Syracuse around 212 BCE; Philon of Byzantium (who lived around 200 BCE) made a spring-driven catapult.

"Heron of Alexandria (who lived around the first century CE) was the most ingenious inventor of all. He described the basic principles of steam power, and is said to have invented a steam-powered device in which escaping steam caused a sphere with two nozzles to rotate. He also made a mechanical slot machine, a water-powered organ, and machinery for temples and theatres, including automatic swinging doors. He is perhaps best remembered for his automatons — simulations of animals and men, cleverly engineered to sing, blow trumpets, and dance, among other lifelike actions." (5)

Heron's "Marvellous Altar," seen below, is thought to have used convection currents from a central heat source to rotate a device in which figures "appear to dance."

A similar device was invented by Ding Huan around 180 CE, in China. Ding Huan's device, a multi-tiered hill-censer, also used convection currents to spin painted images of birds and other animals, creating the illusion of movement.

In its basic design, Heron's "Altar" is a prototype of both Ding Huan's fantastic lamp and the Graeco-Roman “projector” featured in Ancient Cinema.

Heron of Alexandria's Marvellous Altar
Heron of Alexandria's "Marvellous Altar."
Han Dynasty Chinese hill censer (boshanlu), a multi-tiered bronze incense burner similar to Ding Huan's device
Han Dynasty hill censer (boshanlu), similar in form to Ding Huan's device.

Prior to the discovery of the Antikythera Mechanism, skeptics often pointed to the lack of archaeological evidence for early Greek technology — after all, no trace of any of these marvelous machines had been found. But, as other scholars have pointed out, the lack of evidence isn't really surprising. "No doubt, the machines eventually broke down, and, as the know-how faded, there was no one around who could fix them," writes Seabrook, "so they were sold as scrap and recycled."(6) Very few technical drawings or writings remained, because, as Paul Keyser, a software developer at I.B.M. and the author of Greek Science of the Hellenistic Era, observes,'the texts that survive tend to be the more popular texts — i.e., those that were more often copied — and textbooks, not the research works or the advanced technical ones."(7)

But, if the Greeks did have greater technological sophistication than we think they did," asks Seabrook, "why didn't they apply it to making more useful things — time- and work-saving machines, for example — instead of elaborate singing automatons? Or is what we consider important about technology — which is, above all, that it is useful — different from what the Greeks considered worthwhile: amusement, enlightenment, delight for its own sake? According to one theory, the Greeks, because they owned slaves, had little incentive to invent labor-saving devices — indeed, they may have found the idea distasteful. Archimedes' claws notwithstanding, there was, as Keyser notes, cultural resistance to making high-tech war machines, because 'both the Greeks and the Romans valued individual bravery in war.' In any case, in the absence of any obvious practical application for Greek technology, it is easy to believe that it never existed at all."(8)

Notes

1. Seabrook, John. Fragmentary Knowledge, Was the Antikythera Mechanism the World's First Computer?, The New Yorker, May 14, 2007.

2. The Antikythera Mechanism, Decoding an Ancient Greek Mystery, Nature, Vol. 454, Issue 7204, July 31, 2008.

3. Antikythera mechanism, Wikipedia.

4. Nature, op cit.

5. Seabrook, op. cit.

6. Seabrook, op. cit.

7. Keyser, Paul. Greek Science of the Hellenistic Era. Routledge, 2001.

8. Seabrook, op. cit.

04 The Story (After Borges)

Henry Jesionka, whose monograph on the iconography of the Danubian provinces remains unjustly neglected, always maintained that his discovery in the spring of 2011 was entirely a matter of chance. While navigating the chaotic geometry of an open-air market in Zadar, his eye was caught by a minor, corroded anomaly: a flat, tapered wedge of bronze, marred by oxidation and interrupted by two vertical features, the left-most of which bore an inexplicable groove.

The vendor, an illiterate man from the hinterlands of Dalmatia, muttered that the object was merely a weight for a scale, or perhaps a broken hinge from a vanished chest. In truth, he did not know what it was. He knew only where it had surfaced — a lagoon a little to the north, near Nin, where such things sometimes worked their way up out of the mud, as the dead are said to do in the low countries during flood years.

Who determines the context in which an artifact is displayed or how is it used to tell a story?

Guided less by curiosity than by a certain pedantic stubbornness, Jesionka visited the site the following afternoon. There, in a marshy depression where the salt-crusted earth meets the sea, he unearthed a small, anonymous cache that would later cause such bitter controversy at the University of Graz.

What came out of that lagoon over the following weeks I will not list in detail, since an inventory seems to me a way of refusing a story rather than telling one. There were coins bearing the dubious crowned profile of a provincial emperor; the aforementioned wedge of bronze; fragments of a clay lamp whose wick had burned out some eighteen centuries ago, and, most disturbingly, a ceramic chest containing shards of hand-painted glass tablets.

The corroded bronze wedge unearthed near Nin
The bronze wedge
Clay oil lamp found in the Nin cache, stamped with a sun motif
The oil lamp
Bronze coin from the Nin cache, obverse and reverse, inscribed INVENTORI LVCIS and SOL INDIGES
The coin

The cataloging of the Nin fragments was undertaken during the humid summer months of 2011, a labor that soon deteriorated into a kind of obsession. The most legible artifact was a bronze denarius coin, heavily oxidized by salt, which bore on its obverse the words Inventori Lucis — to the creator of light — a reference to an archaic, almost forgotten Roman sun god. Yet, it was the reverse of the coin that troubled him: a crude, hand-stamped representation of a solar disc surrounded by eight rigid, rectangular blocks. This exact geometric motif — the sun trapped within a frame of rectangles — was repeated with liturgical precision across the other finds. It was etched into the soot-stained clay of the oil lamp, and it formed the central medallion of the ceramic chest. The true enigma, however, slept within the chest.

Glass slide showing a woman pouring water from a jar
Painted glass slide from the Nin cache.
Glass slide showing a woman pouring water from a jar, second variant
A second variant of the same scene.

Among the debris were several dozen shattered shards of hand-painted glass. With the patience of a man reconstructing a forgotten language, Jesionka pieced them together at his desk in Graz. They did not reveal a map or a text, but rather a single, monotonous archetype: a woman pouring water from an amphora.

To the casual observer, many of the fragments of Roman glass were identical; to Jesionka, who suffered from the hyper-visual mania of the archivist, the subtle discrepancies were blinding. In one shard, the trajectory of the water was a steep vertical; in the next, it curved slightly outward; in a third, a single droplet had detached from the lip of the jar. They were, he realized with a shudder, sequential.

Sequential glass shards depicting a woman pouring water from an amphora

It was at this precise juncture of his despair that Jesionka ceased to behave as an archaeologist and began to act as a counterfeiter of time. Utilizing the hand-stamped solar disc of a Roman denarius as a blueprint, he constructed an artifice of brass mirrors, an electric motor, and a halogen lamp — an anachronistic projector designed to force the ancient glass to yield its shadow. The result, which now resides in the Ancient Cinema exhibition, projects a woman endlessly pouring water from a jar. Is this loop of light the world's first animated illusion, or merely a mirror reflecting Jesionka's own patience?

Predictably, the University of Graz viewed this apparatus with a hostility bordering on theological outrage. They accused Jesionka — who, like all true creators, was a filmmaker by training and a heretic by necessity — of having invented the antiquity he claimed to discover. They argued that to read a cinematic sequence into disparate fragments of glass was an act of retroactive forgery.

The only certain fact about the ancient world is that most information about it has been lost.

Jesionka, whose indifference to contemporary opinion resembled that of the stone deities he studied, wrote in his sparse diary, “History is not what happened, but the apocrypha we are capable of imagining. Who among us can dictate the language an artifact chooses to speak? The past is a fluid text, and my machine is simply a more lucid way of forging it.”

This vertiginous uncertainty is not unique to the sands of Nin. In a well-known passage of his The Roman World, the historian Martin Goodman observes that our knowledge of antiquity is an architecture built entirely of gaps. He reminds us that the only immutable fact concerning the Roman empire is that almost everything has been obliterated; what remains has been filtered through the fastidious prejudices of Christian monks who, in the silence of medieval scriptoriums, copied only what they deemed worthy of eternity. To demand direct evidence for every ancient truth is, for Goodman, a form of intellectual blindness.(1)

History requires a certain rigorous empathy — a disciplined imagination that does not fear to bridge the abyss between what was lost and what must have been. Jesionka's projector, therefore, is not a falsification of Rome, but its logical conclusion. Like the universe itself, it is a mechanism that requires our collusion to exist. It proves that the past is a labyrinth from which no thread can be removed without altering the shape of the entire maze, and that the artist, by dreaming a false history, becomes the only true chronicler of reality.

Notes

1. Goodman, Martin. The Roman World 44 BC–180 AD. London: Routledge, 1997, pp. 7–8.

The Artifacts Examined

05 Bronze "Projector" Component
Bronze projector artifact
Bronze artifact, 1st century CE. Flea Market Zadar.

An unusual Roman bronze artifact, purchased at a flea market in Zadar, Croatia, was the first in a series of discoveries leading to the reconstruction of a Graeco-Roman film projector from the first century CE.

Metals and metalworking had been known since the Bronze Age, but the Romans' most significant contribution to the field was arguably the mass production of metal objects at scale. Central Italy was never rich in metal ores, which forced the empire to excavate and ship metal across vast trade networks to keep pace with demand.(1)

3-D computer rendering of the Roman projector component, with animation slide and facing mirror
3-D computer rendering of the Roman projector component, with animation slide and facing mirror.
3-D computer rendering of several linked projector components, with sequential images inserted
3-D computer rendering of several linked projector components, with sequential images inserted.

"It is believed that metal procurement and manufacturing were controlled to some degree by the state during the Roman Empire," writes Harold Kory Cooper, "with the army often being directly involved in the mining industry in areas new to Roman control." Spanish mines, by contrast, were run by leaseholders rather than large companies, and, by the time of Augustus (27 BCE), operation of mines had shifted generally from large companies toward private individuals.

The bronze artifact featured in Ancient Cinema is believed to be a modular component of a projector made up of 24 such bronze wedges, measuring 66cm in diameter. As convection currents from a central heat source caused the device to spin, light from an oil lamp, focused by a series of lenses and reflected by a mirror through glass "animation" slides, would have cast a faint image on an adjacent wall or curtain.