In 1863 G&H Barnett Black Diamond File works started. They were in business until Nicholson bought the company in 1907 changing the name to "Black Diamond". These Bowie was made from a large G&H Barnett. It was ground hard to retain the original heat treat, then tempered and given a soft back draw to bring the hardness down and toughen the blade. A handle of highly figured Buckeye burl was mounted on a bolt through tang with the files original stamped tang as the pommel.

And this one got a sheath that was made in part, from alligator skin recovered from an antique chest.

Not many guy can say they carry a knife made from a 120 year old file out in the woods.