Hmmm. The old wayvac machine isn`t exactly in tune today but..... The NYPD did go to Rugers along with the Smiths after they did away with the Colts.
The first Rugers were single and double action I believe but then they changed both to hammerless DAO. Too many NDs from cocking the hammer back. Actually since we were taught single action shooting, the dep`t could only blame itself. They got that from the FBI.
If it`s marked SPNY it should be an issue test gun and all test guns were city property. IOW, some guns were given to street cops to carry instead of their regular duty guns. I remember they did that with *&* 9mm revolvers. The first 9mm semis were marked NYPD since they were given to detectives and Sgts. drivers to test. They eventually were told to keep the guns and they may go up in value.
We bought our own guns from the Equipment Section and they had no special markings so that`s why I`m saying it`s probably a test gun. We owned the guns we paid for.
Can`t help you with the years issued except that the first class of 1994 were issued semi autos only. Maybe a call to Ruger would help?
AFA value goes, I have a couple of Pa. State Police guns. One is the 75th Aniv., the 100th is next year, and the other is the issue 96D with the Keystone stamped on the frame. In certain circles these have value because the PSP doesn`t want their emblems, equipment etc. on the open market. Other collectors could care less.