Directions for use of the Krōmskōp lantern (1898)
London : The Photochromoscope Syndicate, Limited · leaf 6
KROMSKOP COLOR PHOTOGRAPHY. … Fig. io. which it passes through the red color screen, and the image of the red sensation, at c , to the objective f and thence to the screen. Two-thirds of the light passes through the bundle of glass, h, and this is again divided by a thicker bundle, /, about half of it going to the silvered…
Projectors · Color photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten10unit-803-541.webp)
