Thanks Vlad for your input.
Here is a little more description for the first gun I mentioned above, that was sold at auction:
Mannlicher Schoenauer Model 1905 Carbine, 9x56MS, The barrel was also marked, "V L & D New York". The description doesn't mention anything concerning its proof marks.

My rifle was imported from England before I bought it from the dealer. The numbers on my stock are quite worn and not totally legible. So they have been on the stock for a long time. The underside of the action along with the proof marks is the number 8839.20, which I have been led to understand this is the 8839th gun proofed at the London house during the year 1920. If I am incorrect with that understanding please offer your correction.