Lloyd, here is SN 30041, a 10 gauge with Fine damascus barrels. The "XXX" is stamped in both barrels. The attached letter explains this gun except Dr. Jim states it's of undetermined grade. The oddity is that the engraving is of Quality 3 style and the inside of the receiver is stamped 3 but Quality 3 guns only became available in 1894. Another member has SN 30036 with the same anomaly