SERIAL NUMBERS M100A - M174A WERE MANUFACTURED IN 1985, AND M175A - M717A WERE MANUFACTURED IN 1986. THE FIRST SERIAL NUMBER WAS M100A, AND ENDED WITH M717A. I know its got a hammer block so it is not a true mil spec. 1911 I can find on the market is the one offered by AO. THERE WERE 609 M1 FULL-AUTO THOMPSONS PRODUCED. Auto Ordnance 1911a1 Serial Numbers The only true mil spec. Model 1928, and Model M1 Full Auto Thompson You may click on the images to make them larger on your screen. Drewry, Springfield Ordnance District, Army Inspector of Ordnance, Jto July 15, 1945. Presented here are the serial number ranges for West Hurley manufactured Thompson Submachine Guns, Semi-Automatic Carbines, and Semi-Automatic Pistols. ARMY Serial Number 1121296 (parkerized finish) - Shipped Octoto the Transportation Officer, Springfield Armory in a shipment of 2,000 guns. 80 question - to know which firing pin parts to buy). Can you tell me when it was made and if it is a 70 style or 80 style 1911 Do you have any replacement parts for it (that's why I ask the 70 vs. Frank Iannamico was also involved, and Numrich Arms in West Hurley, NY provided the data. Hi, I have an old West Hurley 1911a1 with the serial number E14459. Auto-Ordnance serial numbers and date made I called AO because I was curious as to when my gun was made. As part of The American Thompson Association move of information from the nfatoys website to this site, I want to thank Gary James for the many years of hosting this serial number information, and to Tracie Hill for its original publication. Auto ordnance serial number date Discussion in General 1911 talk started by ForesterPumice, Nov 29, 2016.