The previous information regarding 1995-1990 is not correct. More research on the same website showed a Model 995 with serial number 160***** which is a higher number than yours made in 1984! So yours would be older than that!
The Constitution is not an instrument for the Government to restrain the people. It is an instrument for the people to restrain the Government!
“Americans have the right and advantage of being armed. Unlike the people of other countries, whose leaders are afraid to trust them with arms.”
James Madison. Author of the 2nd Amendment