Resurrecting this thread since I recently got a junky-appearing C3, also with a missing shutter cocking lever. Does anyone have one lying around? This would be the later version, which uses a jam nut to hold it in place (rather than a set screw).
I have not had a chance to test the shutter since this lever is missing, but absent the lever, does anyone have suggestion for a workaround? There's just a threaded post protruding from the camera, so it's hard to grasp it and turn it.