Hello!
I have just received my tenth Fed S.
It's a Fed 1c, last serie: front screw visible and no screw under the rewind button. Serial number: 93609, matching 2/50 lens.
It was repaired as the shutter cage is made of aluminium instead of brass. And there is no hole on the press film. The mechanism is the same as my late S 1d or S 1e.
It is too my 40th Fedka: all different, of course. It will probably be easy to get the 50th. After, I don't know!
Amitiés. Jacques.