They have his sword, catalog number 0985 06 00050.
It is a Model 1852 U.S. Naval Officer's Sword, slightly curved, single-edge blade, with two fullers and edge with stand of arms, shield and anchor, floral sprays, twisted rope, fouled anchor, eagle standing on a cannon, and USN, oval stars and Ames Mfg. Co./ Chicopee / Mass.
A picture of it accompanies the information.