Overall: 8 1/4 x 6 7/8 x 12 1/2 in. ( 21 x 17.5 x 31.8 cm )
stamped: on the underside: "THE/ "PERFECSCOPE"/ TRADE MARK/ U.S.A. PATENT OCT. 18, 1894/ CANADA " FEB. 6, 1896/ FRANCE B. S. G. D. G./ PAT'D IN GREAT BRITAIN/ GERMANY, AUSTRIA, BELGIUM/ DROM/ NO. 53803"
stamped: on the underside: "H. C. WHITE CO./ PATE
Hand-held steroscope with a sliding wooden stereograph holder on a wooden base with a folding turned wooden handle; wooden mask with ochre velvet applied around the rim and square glass viewing lenses.
Due to ongoing research, information about this object is subject to change.