A medium format device with a 6x6 frame format and charging with a tape film with a leader tape (the modern name is type 120) for 12 frames.
Features of the presented device:
the shooting lens is “T-21” (6.3 / 80), the name of the lens is in quotes, the front ring is tapered;
aperture from 1: 6.3 to 1:22;
shutter with shutter speeds 1/25, 1/50, 1/100 and “B”.