My Model 50 is a blue 2 incher, 935J63. I made a note that it was 1 of 568 manufactured in 1973, from Roy Jinks' book.

My Model 60-1, the 2 inch stainless Target from Ashland Shooters Supply is ALU3228. I bought it in July, 1985. My dealer ordered me one when I showed him the ad in either ShotGun News or Gun Digest, so they were made in 1985 if not a smidge earlier.

Unusual, cute little devils, aren't they?