Lot of seven Mexico City, Mexico, cob 4 reales, Charles II, various assayers (where visible). KM-39. 70.86 grams total. Mostly solid coins but with some corrosion and wear, clear shields and crosses, a couple neat shapes. With (generic) certificates from the salvager. Recovered from: Joanna, sunk in 1682 off South Africa (Estimate: $350 - 500)