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Optical lantern & electric lamp...
Item # 222671
January 20, 1894
SCIENTIFIC AMERICAN, New York, Jan. 20, 1894 Ftpg. has three illus: "New Optical Lantern And Electric Lamp", the device, according to the article inside, could be used in photo-lithography and copying, micro photography, for theatrical effects & any application where artificial light was desired. Article includes an illus. of a "Dissolving View Lantern".
Category: Post-Civil War