Made by Massachusetts blacksmith, George M. Thompson of Rockport, the knife is well marked, G.M. Thompson in an arch over R.P. Mass. The double-edge blade is 8.25 inches long with as S-shaped guard and turned wood grip held with a single iron pin. This knife was featured in a detailed 2012 Antique Bowie Knife Journal article by noted expert Josh Phillips, who discovered the knife. Accompanied by original scabbard, this is one of three known examples. While blacksmith-made Confederate knives are fairly common, documented blacksmith-made Yankee knives are extremely rare. Blade ha dark pitting on both sides with surface ware. Iron crossguard with light surface rust. Entire knife has a nice dark untouched patina. Leather scabbard is well worn and the seams are unraveling at the tip.