Normally you will not find a black dial version of the Leica 3F with a self timer however the number shows this one started life as a 3C and would have been subsequently converted at the factory to a 3F black dial and given a self timer at the same time.  Not just a hard to find combination for a collector but this is in excellent cosmetic order and also service and in good working order.  includes a 50mm f3.5 elmar lens.  Usable and collectable.