Hi, I sent you my list of serial #s by PM!The F in pentagram (Freimark in German) only came into effect in Germany as of January 1970, when new airguns had to have less than 7J muzzle energy to be bought/owned without a gun license. Guns produced for sale in Germany have to have the Freimark if they are below 7J muzzle energy, and if they are over that, then they have to have a serial number. A lot of guns carry the Freimark anyway, even if they were not made for the German market specifically.My blue S&W warranty/registration card has a Denver Colorado PO Box address. I doubt that it's been swapped around. If you want pics/scans of the paperwork, just LMK!
Paul Thank you for posting that reference data. I have one that is a shooter not collector grade gun. Nice to know the manufactured date.