Call S&W and they will tell you when it left the factory.
@ 1978
1967
1978
No such S&W model number
your smith and wesson model 60-3 was made between 1988-1989.
1969-1970
Without a serial number the best you will get is sometime after 1977
K276694 was produced in 1956.
There have been thousands of Smith & Wesson pistols produced and the date depends on the model of the gun and then the serial number. Have a gunsmith or collector do an appraisal of the firearm and they will tell you the age.
1960; 20-1000 usd
You will need to call S&W
The Smith and Wesson model K14-3 was produced from 1947-1982. You would need to write into Smith and Wesson with the model and serial number. They can pull the date and send it back to you.