06/25/2015 11:27
A very interesting "inside", for what we can see!
In fact, it looks very like an early Fed 1a: it has too screws to fix the bolt. Late 1a (and all the following Fed) will have rivets instead of these two screws.
Some slight differences: a spring a bit too short; the axle of the rewind lever which is larger...
By what you see, the shutter cage is made of brass, aluminium or iron?
If ever you had the idea to unscrew the lens, it would be interesting to have a photo of the rangefinder tip...
Thanks, Ilya. Jacques.