Lot of five Mexico City, Mexico, cob 8 reales, Charles II, assayers G and L (all visible). KM-46. 90.88 grams total. Two solid but three rather thin, all with clear crosses and shields and all with visible assayers. With (generic) certificates from the salvager. Recovered from: Joanna, sunk in 1682 off South Africa (Estimate: $350 - 500)