The coin was salvaged from the wreck site of the Concepcion which sank in July, 1641. There is a Certificate of Authenticity that this coin was found at the Silver Shoals, off the Dominican Republic. It weighs 26.5 grams and is 1.4" x 1.5". The item "Mexico City 8 Reales, Cob Coinage 1630 -1641" is in sale since Monday, November 2, 2020.This item is in the category "Coins & Paper Money\Coins\ World\North & Central America\Mexico\Colonial (up to 1821)". The seller is "waramaug11" and is located in New York, New York. This item can be shipped to United States.