USSRPhoto Wiki Catalog
FARM-2 Aerial Camera
Cardridge for 35mm film
There are two versions that exist: FARM-2 and FARM-2a
TU-16 Badger and TU-95 Bear bomber ( in reconnaissance versions ) have this camera on board.
It is also a possibily that it`s a submarine camera. but no confirmation. There is confirmation for it to be an aerial camera in books with a picture of a FARM-2 in a TU-95 Bear and in a Mil Mi-14 Haze helicopter.