S&W model 53 but not stamped
Hoping to get some info as we are stumped. I have a S&W 22 jet, barrel is marked 22 mag, 6" barrel, blue with diamond grips. I know this is a model 53, but it is not stamped with the model only the serial number. I can't seem to find any info on a pre-53 or info on 53's not marked. Any ideas?