The product is an auction catalog titled "CHRISTIE'S Gold Silver Atocha Santa Margarita Shipwreck" published in 1988 by Christie's in the United States. The catalog focuses on the auction of items related to the Atocha and Santa Margarita shipwrecks, offering detailed information and images of the artifacts being sold. This specialized catalog is a valuable resource for collectors and enthusiasts interested in these historic shipwrecks and the artifacts they have yielded.

Signed by Cathy as pictured