Photograph of the Moon taken by Warren De La Rue
1858-1868
Two circular diapositive photographs of the full Moon mounted in passe partout frames, originally for use in a large stereoscope using prism which was disposed of in 1958 (BOS 2/4/58). Taken by Warren De La Rue [1858-1868] through a 13-inch reflecting telescope with a speculum mirror and using wet collodion plates. The instrument was carried on a German type clock-driven equatorial mounting housed in his observatory at Cranford, Middlesex.