I need approx date of manufacture for insurance paperwork for 6 of my S&W revolvers I purchased used.
4" 64 ND skinny/standard barrel, SN: D611xxx 1973/74
2" 64-2 SN: 7D20xxx 1981
2" 640 ND .38 spl, SN: CAC3xxx
4" 681 ND .357 mag, SN: AJU5xxx
4" 617 ND .22lr, SN: BEF4xxx
4" 65-5 .357 mag, SN: CBE6xxx
Not looking for anyone to do my work for me, if you can point me in the direction of a look-up post or website. Also not looking to spend $$$ on letters form S&W for guns that are just shooters and not collectible. Any assistance appreciated and thanked in advance!
-Figured out 1st two on my own via google