Just purchased a Savage 99F in .308 caliber with serial number 10474XX - cannot read the embossed stamp on the front of the lever tang. Mfg'd by Savage Arms Corporation, Westfield Mass. Cut checkering in an "M" pattern on the forestock and in a kind of Nike "swoosh" above the lever. Gold trigger, safety on top behind chamber. Would like to know date of manufacture. Thanks for any help.