Bang

Welcome to the forum

The 44 magnum was introduced in 1956, by 1961 it would have been the -1/-2 variant. The Combat Magnum was intro'd in 1957 and by 61 would have been the 19-2. The snubby 19 (2 1/2") did not see standard production until about 1966 (my birth year) although there were a few made prior.

Go on Ebay or the like and see if you can find a Gun Digest from 1961, or a little harder to find, a S&W All Model Circular from that year. This will give you a good start.

Happy hunting