Cool card Andrew!
I collect 1911 also. Have one JJ Collins stamped back out of 120 or so. Need 2 to complete the set.
Also have put a run together though not all with coupons as Leon did.
Here is a back stamp on one of the 1911 cards:
Here is the only "corrected" card in the 1911 set. Discoll corrected to Driscoll:
