This mysterious camera was already mentioned as Smena-2 (5). Different camera resources supply us with very contradicted information again. A big half of camera collectors never saw this camera alive.
Name: „Смена-2М“
Producer: MMZ
Lens: Triplet-22M 4.5/40
Shutter: 1/8, 1/15, 1/30, 1/60, 1/125, 1/250 + B.
Quantity: ± 50.000 units. (Sovietcams.com)