This is a Russian microfilming unit. The camera that is used to take pictures of documents is very cool looking that is why I've decided to add this to my collection. The official name is RA-1 or later referred to as S64.
It is manufactured by KMZ and uses Micrat-200 camera. It uses 35mm film to take 18x24 micro-photographs.
The lens is an Industar with a foal length of 30 mm and a maximum aperture of f/5.6. Shetter speeds are 1, 1/2, 1/5, 1/10, 1/20 and B. Recommended film is either 35 mm Micrat-N or Micrat-200.