Small viewer for use with the stereoscopic astronomical images taken by Max Wolf and published by Johann Ambrosius Barth in Leipzig. The inscription reads "Carl Zeiss, Jena."
This type of stereoscopic trainer was based on research conducted by the National Defense Research Committee and the Eastman Kodak Company, and was designed for training antiaircraft gunners during World War II. This example was produced by the Rochester Ordnance District. The inscription reads “Stereoscopic Trainer - Mk. 6-1. Serial No. 538 ... Rochester N.Y.”
Ref: “Stereoscopic Trainer,” New York Times (Nov. 14, 1943), p. E9.
Stereoscope and set of stereoscopic cards depicting a variety of skin diseases and conditions. The paper label on one end of box reads "THE / STEREOSCOPIC / SKIN CLINIC / RAINFORTH / R. C. KETTLES / HOLLIS, L.I., N.Y." The images were created by Seldon Irwin Rainforth (1879-1960), A.M., M.D., and issued by the Medical Arts Publishing Co., in Brooklyn, in 1918.
Stereoscope with a set of colored images of skin diseases. The images were created by Seldon Irwin Rainforth (1879-1960), A.M., M.D., and issued by the Medical Arts Publishing Co., in Brooklyn, in 1918.