Serial no.1067/17,N/A,Condition B-
Here is a rare original Stereo desk viewer from World War One era, from Leitz Wetzlar, engraved with "Rg. 1067 / 17". Originally used for military use of reading stereogaphic maps, those viewers also were used for viewing prints made from photographs taken with FIARO and FIATE Leica Stereo slide bars. Compare Lars Netopil "PROTOTYPE LEICA", pages 117-121. This viewer has been authenticated by Lars Netopil.