NSN. Made circa 1850. 58 caliber barrels with 7.5” barrels. These guns are in very fine condition with 70% of the brown finish on the barrel. The trigger guards have approximately 35% of the original blue finish. The locks were case hardened and on one of the guns, bright case colors can be seen in protected areas. The locks and trigger guards are very nicely engraved. The barrels have double gold bands near the nipple areas. The case is originally lined. The center partition has been remounted. All the accessories are still in the case. This is a very nice double barrel smooth bore set.