Hello Jack.
I wanted to contribute what might be the first 2 blade stamps Bo had.
We know he ordered his first stamp in 1939, then ordered another in Aug 1943.
Here is what I feel is the 1st stamp that Bo had. Picture of Ron Mathews pre WW2 knife
The following is the stamp on my WW2 Hunter
Definitely different stamps, the left scimitar on my knife, the top of it is square to the R in RANDALL.
The earlier stamp on Ron's knife that top edge is higher and angled to the R.
So I believe that Ron's knife exhibits the first stamp as his knife is earlier, and mine the 2nd one, that the shop got in late 43.
Another illustration using Jacks pics from an earlier post in this thread, which I believe is the 2nd stamp ordered in 1943 like mine illustrated above, still a type 1 but 2nd generation.
Compare the 2 stamps below. Compare the scimitars on both sides to the nearest letter. Definitely differences on both sides. Bottom photo is Ron's early stamp.
Regards, Samg