Clump of four Mexico City, Mexico, cob 8 reales, Charles II, assayers not visible. 77.13 grams total. Stack of four solid but smoothly-worn coins, darkly toned, with one turned 90 degrees relative to the others by shape, some dark encrustation in between. With original (generic) certificate from the salvagers.Recovered from: Joanna, sunk in 1682 off South Africa
($200-$300)