I picked up the Model 36 yesterday. I've been wanting one, especially since I sold my 36-1 on this forum last year. This one is nicer by far than my 36-1. The grips are numbered, but they are one-single digit off from the gun. Dang. That is close.
I think it was made around 1963 with a serial number like 375XX. It is my only J-frame.