Ok, heres more info:
Serial number:
128164
Patent dates:
jan.24.65, july 11.65, aug.24.69, reissue july 25.71, may 11.80, jan 3. 82.
Nickle finish, black/brown bakelite grips, exposed hammer, DA/SA, 38S&W caliber, one cylinder stop.
according to this site...