What N framed models were available in 1966?

[jaydoc]

I’m very much a novice at S&W revolvers but I’ve started a collection of 1966 N frames because I like ‘em and it’s my birth year. I have models 25, 27, 28, 29, 57 and 58. I shoot them all. A couple are in very nice condition and the rest are shooter grade guns.
My question is: what other models were available in in 1966 N frames? From what I can find, the model 24 ended that year and is rare to find. I need a 25 in 45LC as mine is .45 ACP. I know there were a couple of other esoteric chamberings. Was there still a model 21 or a 38/44? What should I be looking for? Will they all have the usual N frame S serial numbers?I want to get all of the calibers that I can still find ammo for. I don’t reload. Will also try to gradually upgrade the quality of my collection as I’m able.
Thanks for any helpful comments.

 

[toroflow1]

Technically available until 1966 were models 20, 21, 22, 23, 24, 26 although very spotty production (and RARE) after model #s were introduced in 1957/8. All model-marked guns as listed above are valued collectors items. In fact, I have a model marked 26-2 made in 1964 that I need to letter, due to Doc44 telling me it would letter. It will be the first model 26-2 found in the wild. Also, the newest edition of the Smith & Wesson "bible" (available on amazon) will educate you with everything you need to become an S&W expert!

 

[jaydoc]

Thank you for the helpful post.