I just picked up a nice LC Smith and after a lot of online research and looking in my Blue Book I'm still not sure when it was made. S/N 17562 with an F stamped under it. Patent date Mar. 29 of 83. Right barrel says Stub Twist Barrels, Left says L.C. Smith, Maker Syracuse N.Y. Checkered pistol grip and a touch of engraving. 30" barrels. Any help would be much appreciated!