I can only guess that you guys get sick of this question but it appears that S&W serial number lookup resources are just non-existent. I can easily find the date of manufacture for my other guns but not my S&W. Oh well, I'll play the newbie card and lets see how hard I get trolled. I am looking for the date of manufacture for a Model 66-2, serial number AYM3xxx. Can anyone (will anyone) please help? Thanks Guys!