I have a Remington 22 Model 512 .. it appears to have the numbers .. 45 on one side .. and maybe an X stamped.
On the other side . it has the letters .. px x (and then a little symbol that looks like a "note" on sheet music)
Can anyone tell me when this was made or what I have ?
It is in very good shape .. got it at an auction today .. appears to be older but good condition .. and solid !!