Watch List notes:

Mexico City, Mexico, cob 8 reales, 1679 L, rare. S-M21; KM-46; Cal-640. 21.92 grams. Rectangular flan with flat peripheries but decent inner details, including nearly full cross, off-center shield with full oML and 79 of date, low contrast, typically thin from corrosion. With original (generic) certificate from the salvors. From: Joanna, sunk in 1682 off South Africa
($200-300)