Ashcraft carbon arc-lamp projector (1960's) - at Hong Kong Film Archive - YouTube
Typical projection booth usually had two or more large projectors that often used carbon arc lamps. | Film projector, Movie projector, Cinema projectionist
Patton Oswalt on Twitter: "The 1941 Peerless carbon-arc projector at @roxietheater. Battleship metal. https://t.co/Y3ILgszWOx" / Twitter
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