I asked for clarification of what the “matching†issue was with the GB lock simply to see if there was something other than â€matching numbers†that might be the problem. Few 1910 locks have matching numbers in my experience and the few that I have seen out of many hundreds are locks of very early manufacture. There is an immense variety of locks and even the few that have come to the US evidence a bewildering variety of markings or makerrs, inspectors, date and numbers. I had 800 locks going back over ten years ago, part of a large number of locks and barrels imported by one of the import outfits of the time. That number represents a tiny number of the locks manufactured for the 750,000 1910s during the many years of production. Few of this number of locks have matching numbers and many of those had several mumbers electropenciled, etched or stamped on the parts. Some had only the original numbers. The point is that “matching numbers†is a false value and has nothing to do with the actual value of the locks. There are “new†locks with two or three numbers and well worn locks with matching or mostly matching numbers. The numbers on a lock really mean nothing in regard to its value, in my view.
The parts are all interchangeable and overall, the Russian made locks I own and have handled, etc, are quite high quality. The best locks are the Finn made examples.