78/5215
[Viewers]. Graphoscope,
veneered wooden viewer (w. the address G.A. Mögle, The Hague), ±1910, 20x13x4 cm. (when closed), w. convex lens, w. sliding holder.
= A graphoscope is a device for looking at prints and photographs through a lens with a magnifying effect, which causes a suggestion of depth.
€ (60-80) 60