I have a couple of retinas, a !b and a 11, which is nob wind, and also has a rangefinder, the 11 I have has a small lever on the front marked advance and rewind, and my 1b has the normal push button on the bottom,for rewind, yours should have 1 or the other, they are great cameras and take great photos, if you have a lever wind treat it very gently as the cocking rack is a weakness in these cameras and it is easy to strip the teath of of it and that could mean sending it to Chris Sherlock in NZ, apart from that enjoy it it is a great shooter,Richard