View Full Version : Letter A under Colt serial no. means what?

July 27, 2009, 11:34 PM
I have an old (mfg. 1930) Colt Police Positive Special, serial #384XXX. Directly under the serial number that's on the inside of the crane is the letter A. Does anyone know what the A indicates?

James K
August 1, 2009, 10:46 PM
I don't know the answer, and apparently no one else does either or they would have answered. FWIW, I suspect the A is the mark of one of a number of Colt factory inspectors. I have never seen a Colt serial number with a letter suffix and doubt it was intended to be part of the number.


old knife buddy
August 2, 2009, 12:57 PM
jim i would say your right its an inspecton mark. just guesing the gun might have been issued to military or a large police contract, then the where hand inspected

August 2, 2009, 06:12 PM
On the pre-war Colt's the letter "may" have a specific meaning.

As example, a "T" indicates the gun was factory targeted.

However, in most cases, then and now, a letter under the serial is a factory inspectors stamp.