I can't think of a better caretaker of these rare guns than RM Vivas. He is THE NYPD weapon expert. As a retired member of that department, I remember well the transition to the off duty semi auto pistols, which happened three years after the on duty 9MM's were standard. Beretta Mini Cougar, Glock 26, Kahr K9, and a few Smith and Wesson auto's, the 3953 TSW (I have an early 7 shot version bought off a retired officer), the 3953, the 3914 DAO, and I am almost positive the 908. I remember the black one being cheaper.
This 3983 beats them all, and it's very cool they have it serial numbers starting with NYPD. The cops paid for their off duty guns so I don't know why they didn't offer them. Make a run for the NYPD with the NYPD serial number and replace the civilian 3953 with 3983's with standard serial numbers. I would be just as pleased to own NYPD8956 as I would NYPD0010.