Guys: I like USGI guns, Colt automatics, and .22s. So, when I found this 1942 production Service Model Ace at a local show it was like 'the perfect storm'. I had to buy it and eventually did, after some sage advice from my friend Kevin W. It is GHD inspected and has the Ordnance Dept. insignia on the right side of the frame. The serial is SM 3661. (I always liked the fact that the SM Aces had their own serial number range.) I took a couple of pics today and I'll post them below. The Ace is shown with a 'dogbone' box of Remington .22 ammunition, an Army Lot manufactured in 1943.