I collect firearms and gear from my old agency, the New York State Police. As a matter of fact, the two snippets from the Troopers History in post seven above, were from my research. That's me on the "Compliments Of" line.
When I bought this revolver I knew there are no historical records of that agency equipping their members with four inch M&Ps. I was hoping the gun may have been a one-off or a manufacturer’s sample that they considered evaluating/ buying and had gone ahead and marked it N.Y.S.T. (increasing its value to me and my meager collection). After purchase, I paid the freight for an archive letter which disproved that.
The N.Y.S.T. marking is not typical as to size, font, or placement for that era. At some point, the side plate marking was very neatly added but apparently has no significance to the gun’s actual NYCPD ownership. The fact that it is an old NYCPD revolver may have value to someone and that is what I’m trying to identify.
