Jacques,
your FED S looks strange, but interesting.
I also got a FED S, serial number 127630 with lens 28631. The camera was a tough nut to crack. The shutter straps were loose, the camera was incredibly stiff and the aperture blades in the lens were displaced. However, the shutter cloths themselves were in good condition.
I managed to fix it, the aperture blades were a real test of patience... However, I can't get the camera to move smoothly, apparently some parts don't fit together properly. That's probably why it still looks like new.
I forgot... The date scratched on the shutter housing inside ist 20/I



Ulrich
http://fotos.cconin.de