The book of the lantern : being a practical guide to the working of the optical (or magic) lantern : with full and precise directions for making and coloring lantern pictures (1889)
Hepworth, Thomas Cradock, -1905 · New York : E.L. Wilson · leaf 82
60 THE BOOK OF THE LA.NTERN. emergency. In some of my experimental lectures, where I require a lime-light for occasional use on the plat- … Fig. 26. form, I carry with me a small bag holding only three feet of gas, and a special form of pressure board which I have designed for the purpose. It consists simply of two pieces of inch board, each pierced on one edge with corresponding Centre-bit holes three-quarters of an inch in diameter-…
Lantern projection
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
