Quote Originally Posted by Surpmil View Post
Did the mark lack the second period/full stop as this one apparently does?

In the last photo on the barrel just below the Nock's Form, there is a crossed swords mark that looks like "AGP"; "Alfred G. Parker" ? There is a coincidental dent or scratch which I believe makes the "P" resemble a "B".

That is the Proof mark and year from the Birmingham proof house.

AB is 1950

The lower letter / number indicates the 'rank' of the viewer (examiner)