Title: | Serie 1 |
Date: | c. 1903 |
Material: | Card stock, tinplate viewer, glass lenses |
Dimensions: | View 2¾ × 13⁄16 (70 × 30 mm), viewer 4¼ × 3 × 1½ in. (108 × 76 × 38 mm) |
Company: | Rotograph Co. |
Location: | New York, United States |
A folding viewer of chromolithographed tinplate. At least 8 models were made. They were sold in 4 different countries: Germany, France, Spain and the United States (Wangari 2026a). In addition to US Patent 720849, the box lists a German design patent D.R.G.M. (Deutsches Reichgebrauchsmuster) No. 157580 (Fernández 2026).
The print is on silver bromide paper, the most common medium for printing black and white photographs through much of the 20th century.
Stereo viewer imperial tin with original box ALEMAN.Foticos Collection. Accessed Feb. 5, 2026.
Imperial Stereoscope | Neue Photographische Gesellschaft (NPG).V 3D V. Accessed Feb. 5, 2026.