I have a nice at-1 missing the rewind knob, and getting hold of spare part is going to cost $15+ for such a small part. I have a ae-1 program with a ceased shutter however the rewind knob of course is not compatible with at-1 (the ae-1 knob has a male thread while the at-1 has a female thread). Was wondering if anyone out there is Oz had a useless 'for parts' at-1 (which they wanted to trade the rewind knob) and wanted any parts from an ae-1? I think the at-1 and FTb share the same rewind knob. Instead of purchasing one I thought I would ask and see if i could get a win win situation. (The ae-1 is in good cond. and alsmost all parts are there).