I have this exact same mint set, also the cleaning rod brushes and 125th anniversary medals and possibly the papers, will have to check. Received from my grandmother after dad died in 1968. She kept them in a safety deposit box for 30 years.
After some digging I have located an old 1961 ad for them which would seem to indicate they are not commemoratives per se, but rather heavy K-frame SAA production guns in nickel finish. The ad indicates they are meant for field and den and come in presentation cases with the 125th anniversary medallions. Could be had either single or as a double set. The word commemorative is not on the guns anywhere and I have been unable to locate them in any commemorative listing online.
Anyone able to shed any light on their production numbers or value?
A set recently on gunbroker with a start bid of $ 1799 received no bids