Continuing on in this week's post with more discussion about the Mint Of The United States At San Francisco Type II large hallmark ingot, #1267.
As I noted in wrapping up the last post, the only place I have seen a large hallmark used is on the reverse of sheared plate examples where it appears that the originally produced plates, prior to being cut (sheared) were hallmarked with a much larger die. Mint Of The United States At San Francisco Type II ingot #1767 is one example of this, see the obverse and reverse with partial larger reverse stamp below.
I immediately knew that the hallmark on #1267 was something that I had never seen on any obverse BUT if it matched the larger hallmark from the reverse of #1767, along with the other supporting information that I presented in the first blog, then I felt it could be authenticated.
This last picture says it all.