Originally Posted by Drew Hause
It carries 3 proofs.
2nd proof was 1925-1954 when the chamber length and 1 1/8 oz. were 1st marked.
The Birmingham Proof date code at the top was used 1921-1942 and if you could chalk the mark maybe the capital letter at the top could be deciphered

This is the best I'm going to get, I'm going to call that the bottom of a "C" and go with 1923- 1924:

[Linked Image from i.postimg.cc]

Last edited by Geoff Roznak; 01/20/26 05:43 PM.