Lot of four silver shipwreck cobs: Atocha (1622) Potosi 4R Grade 4; Maravillas (1656) Mexico 4R assayer P; Consolacion (1681) 8R assayer V; and Potosi 2R 1711Y (non-wreck, but 1715-Fleet period). 37.36 grams total. Good assortment, the shipwreck pieces rather corroded (the Atocha piece just a fragment) but attributable and the 2R an interesting shape with clear date (VF with flatness). With certificates, including Fisher #169707 and Humphreys #91-4R-3201. SEE INTERNET FOR PHOTO. (Estimate: $350 - 500)