British auction had this lot – 25 vintage Soviet spy cameras masked as normal Soviet camera “Zenith-E” camera in a case. To understand how it work they had contact Russian factory who made those.
It looks like a camera in case, but there is no camera that can be taken out of case. Camera parts are embeded into case so the person can shoot with the case itself, when all around think that his camera is covered with case he in reality could should photos.
There are special holes on the side that cover the lens.
Camera was sold for $5300.