Very old  BSA motorcycle pin-back badge.....just the thing to wear on your hat or jacket at clubs and swap meets etc.
    These badges are  very old,probably 1950s but could be early 1960s....however,I don't know for certain.  
Note that these tin badges were  not issued by BSA itself,but were part of a series of premiums  issued in things like  bubble gum packets,breakfast cereal  boxes,etc.

On the back is printed BSA MOTOR-CYCLE.....Great Britain.

This is a very lightweight tinplate item.

There's nothing to stop this badge looking good on your club jacket or hat.

SIZE:  31mm wide,

Postage is FREE.