Frame size: 18x24.
Lens: Industar-69 2.8/28.
Shutter: 1/30s, 1/60, 1/125, 1/250s + B.
Quantity: ±1.250.000 units.
Identical to the Chaika, with some minor modifications, such as the replacement of the rewind crank by a knob, a new shutter release design.
Picture 2 shows the fairly rare version with English inscription. David Tomlinson.