1962 – J frames only (c. #295,000 on the Chiefs Spl.), the hammer to spring strut junction changed from ball/socket to the fork/pin.

1965 - Bangor Punta on boxes and paperwork. Bangor Punta Corporation headquartered in Greenwich, Connecticut didn't exist until 1964, when it appeared out of the merger of old Bangor and Aroostook Railroad in Maine with the Punta Alegre Sugar Company & RR of Cuba. BP finalized the purchase of S&W in 1965.

1967 – Relocation of the rear sight front tang screw forward,14-3, 15-3 & 18-3.

1966 - change from 3rd style flat latch to standard thumbpiece on J frames and probably Airweight K frames.

1968 - delete diamond around escutcheon October 11, 1965 and escutcheon nut on Magnas January 11, 1966 and marked the beginning of the change to stocks without the diamond. Magnas w/o diamond reported as early as 1966. 1968 - Order to delete the diamond on NT and KT stocks December 28, 1967

1973 - Stock med washers (circles) changed from black to stainless and the countersunk silver screw escutcheons to flat brass

1977 change from gas ring on yoke to cyl and back again 10-7 & 8, 14-4, 15-4 & 18-4, etc.

1979 - Stock numbering ceased, (with the Model 520 being one of the last models w/#d stocks although seldom matched the gun!)

1980 – New style extractor star, serial # no longer stamped on it.

__________________
Jim
S&WCA #819