Well, I've done it again! I just picked up a "King Nitro" 12 ga dbl bbl at the Jockey Lot. It has sidelocks and exposed hammers. No other markings on the gun except serial number -- no proof marks that I can find. Also, I assume that the barrels may be the first generation after Damascus, as I can't see any tell-tale signs of being hammer-forged. Has anyone ever heard of these guns? The Blue Book doesn't even list 'em, and they have some really obscure guns!