M60 serial number

[OldLawman]

I do not have one of the blue books.

A friend is looking to date an unusual 2" M60. Pinned barrel, flash chromed hammer and trigger. It belonged to a now-retired Secret Service agent, who sent it back to S&W to be engraved, and has the factory invoice.

Not looking for valuation, just year of production. Can anyone help? We can communicate by PM for me to give you the serial number.

Thanks to all.

 

[two-bit cowboy]

With the serial number I can probably get close to dating it.

I'd guess it has a J-prefix serial number, placing it between 1969
and 1982.

If it doesn't have a J-prefix it dates to at or before 1969.