Manufacturer's track products by product code, not by revision numbers.



In today's world of cheap computers and storage it would be technologically possible, there is just no reason for it from a corporate standpoint. Collectors seem to be the ones that really care to that small of a distinction.

You do have the rare exceptions like product code 101024 (6 shot 627) where an emergency engineering revision needed to be made. So we know that 278 of the original release were produced. However we have no idea how the remaining 4998 revolvers of that product code were distributed across the -0, -1 and -2 engineering revisions. The -0 is the most common with the -1 as the second most common. I believe that the -2 is actually the rarest of the 101024s but there will never be any evidence to confirm or deny that belief.