This is the pin Eddie Rickenbacker had made to give the 94th Fighter Squadron members while visiting the unit in North Africa.  1 inch by 1/2 of an inch across in size.  Maker marked on the reverse side with a hallmark I cannot make out.  Looks kind of like a "K" inside of a torch shape - Also marked "STERLING".  pin back with a drop in type of roll locking pin catch.