Properly photographed UK examples such as Katelynne's help give us a better understanding of what stamps were actually applied for military use versus what marks may have been later applied when it was taken out of military service and sold on the civilian and/or export market.

A very nice example indeed.

I just have one question for the experts, and I feel I should probably know it by now, what does the "B-F" indicate on the barrel flat near the barrel's s/n? I know typically we would expect a "B" to mean blued but the "B-F" (in a more modern font) kinda has me scratching my head.

Are there any import markings elsewhere on the revolver? I just wonder if it could be something along those lines?