Yes
The smith and Wesson model 10 has the K service frame.
The frame size of a Smith and Wesson model 66 is K.
The Smith and Wesson K frame revolvers were made from 1946-1983.
It is a K-frame.
K frame
No, it is an L frame.
I believe it to be the K frame
K frame
Standard Catalog of Smith and Wesson Firearms by Supica and Nahas History of Smith and Wesson by Jinks.
It is a K
The Model 13 is on a K frame.
No serial number = no answer.