The Sciopticon manual : explaining lantern projections in general, and the Sciopticon apparatus in particular, including magic lantern attachments, experiments, novelties, colored and photo-transparencies, mechanical movements, etc. (1877)
Marcy, L. J. (Lorenzo J.) · Philadelphia : J.A. Moore · leaf 63
des of this class. A female figure is seen floating down to earth ; around her forehead is a wreath of poppy, indicating sleep; in her arms are two sleeping children (Sleep and Death) ; and in their company is the symbolic owl. THE SLIP SLIDE. Fig. 19 represents a class of movable slides most in… … wig. 19. on the slip. Both glasses are blackened except where the picture is to show; when the slip is pushed in, the bird appears with a drooping tail; when the slip is drawn out, then you will see him spread. In some of these there is a slip each side of the fixed glass. In the popular slide…
Lantern projection · Slides (Photography)
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
