caption: "Fig. 227. Mechanism of Power's No. 6 Cameragraph, Showing the Three-Wing, Outside Shutter."
Date
Source
Optic Projection: Principles, Installation and Use of the Magic Lantern, Projection Microscope, Reflecting Lantern, Moving Picture Machine, by Simon Henry Gage and Henry Phelps Gage, Ph.D. Ithaca, New York, Comstock Publishing Company. 1914. page 410.
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==Summary== {{Information |Description=caption: "Fig. 227. Mechanism of Power's No. 6 Cameragraph, Showing the Three-Wing, Outside Shutter." |Source=''Optic Projection: Principles, Installation and Use of the Magic Lantern, Projection Microscope, Reflecti