As a negotiable instrument, a check is a species of commercial paper, and therefore self-authenticating. See Fed. R. Evid. 902(9); Fed. R. Evid. 902(9) provides: Self-Authentication: Extrinsic evidence of authenticity as a condition precedent to admissibility is not required with respect to the following: . . . (9) Commercial paper and related documents. Commercial paper, signatures thereon, and documents related thereto to the extent provided by general commercial law. See United States v. Hawkins, 905 F.2d 1489, 1494 (11th Cir. 1990) (checks); United States v. Little, 567 F.2d 346, 349 n.1 (8th Cir. 1977) (same); see also United States v. Carriger, 592 F.2d 312, 316 (6th Cir. 1979) (promissory notes).