Other than the chance of cracking the frame ( if not already cracked) some other differences are present.
The cylinder of the Model 12 is LONGER THAN THAT OF A MODEL 10!
Model 12 cylinder is same length as that of a Model 19.
Save your money!
I am obliged to not reveal the names of the retired NYC PD Captain ( now about 90 years old), nor the gentleman who now has possession of the .32 Pocket Positive. Know both gentlemen for many, many years. The retired Captain since shortly after he joined the department up to the present. We are...
Not all trophy NYC PD guns were new S&W revolvers
I remember one which was a USED .32 Colt Pocket Positive.
It is now in the possession of a NYC PD official, ( gifted to him by the original trophy holder, a retired NYC PD Captain )
I started out in the 1940's ( my first FFL 12-49) later became 12-49M (gunsmithing was considered manufacturing),
I apprenticed to a gentleman who held his Meisterbrief from Germany. Made me hand file a block of steel into a ball, then after I proved I could run the lathe allowed me to assist...
In over 40 year as a gunsmith specializing in NYC PD repairs I changed out hundreds of firing pins that were broken.
The majority were on 'off duty' revolvers.