Incorrect hammers?

[Dean Romig]

Interesting... 19595 and 21597 are 1880 and 1881 guns. I wonder if the additional stamp, in the case of these two serial numbers a "2", was something Parker Bros did particular to a small range of years or serial numbers.

Does anyone else have hammers with additional stamps besides the serial number?

[David Noble]

That's a possibility Dean, but here here's another set from 1881 without the "2".