All sorts of info on the DSS guns. If I keep digging I believe the ANN serials were DSS guns while the AYY are thought to be a contract for Connecticut state police.[/QUOTE]

When I joined the CSP in 1980, we were issued the blackened model 66's, as noted in an earlier post. I am not sure what the plain clothes guys were carrying, other than some were carrying snub .357 revolvers. There is a web site maintained by the CSP for active / retired members. You might want to get on it, and ask if anyone remembers the specifics of their issue snubby gun. It might help you in your "AYY" confirmation.

Larry