According to a qoute from Rezin Bowie in The Planters Advocate:
"The first Bowie knife was made by myself in the parish of Avoyelles, in this state (Louisiana), as a hunting knife, for which purpose, exclusively, it was used for many years." After James was attacked, Rezin gave James a knife to carry with him and this knife was the one that JAmes had during the Sandbar Fight. Rezin Bowie said, "The length of the blade was nine and one-quarters inches, its width one and one-half inches, single edged and not curved" …quite different from the Bowie knife as it came to be recognized
Rezin P. Bowie, Planters Advocate: August 24, 1838
The Bart Moore knife is a claimant for the title of Bowie's Alamo knife. The Moore family asserts that an old Mexican soldier, who claimed to have participated in the storming of the Alamo, gave the knife to Mr. Moore's grandfather. The soldier supposedly retrieved the knife from where it lay by one of the funeral pyres and had kept it for many years. He offered it to Mr. James F. Moore as payment for a five-dollar debt.
The Moore Knife is a Clip point blade 8-1/4" long with iron furniture and an oak handle that appears to have been replaced. The blade has "J. Bowie" scratched on one side and the initials J.B. on the other. This knife not only claims to be the Alamo Bowie, but also the knife made by Arkansas blacksmith James Black from Bowie's original idea. Black claimed to have made two knives, one as Bowie requested and one of Black's own design. Bowie chose Black's design over his own.