Medium format 6.5 x 9 cm. sheet film, or ...
6 x 9 cm. images on rollfilm (with rollfilm back attachment).
Coupled rangefinder or groundglass focusing ..... lens : Industar-7 / f.3.5 - 10.5 cm
Body serial # 158 ..........Lens serial # 182860
factory : GOMZ / Leningrad, USSR
year : 1939 / production of about 1150 units total in 1939 & 1940

notes: This camera was designed by Andronik Constantinovitch Ionnissiani in 1937, primarily to be used as a press camera. This example is complete with 12 metal plateholders, a film pack adapter, filters, lens cap, and leather case.

more photos at: nightphoto.com

Known Serial Numbers:

#0147
#0158 Bill Parkinson collection

#0183 Private collector. Modified somewhat.
#0189 for sale on Molotok recently

#0201 Private collector
#0247 Alexey Nikitin collection
#0286 Alain Berry collection
#0364 Anatoliy Zilbert collection

#374. Private collector.

#407. Private collector.
#0432 Aidas Pikiotas collection
#0455 Viktor Suglob collection