Mark Larson,

6,683 is definitely an interesting serial number, both for the cocking type, and the name on the plates. That era was typified by sidecockers, and most of them are "D.M. Lefever," with a handful of examples which say LAC but were clearly produced out of sequence.

Yours being both LAC and a rod cocker is pretty unique. And a straight grip, to boot!

Nice find.

- NDG