Watch List notes:

Mexico City, Mexico, cob 8 reales, 1680 L, rare. S-M21; KM-46; Cal-641. 25.50 grams. Solid piece with surfaces rather smooth and matte due to light corrosion and encrustation, some shield and cross detail, bold final digit of date (and thus rare). With original (generic) certificate from the salvors. From: Joanna, sunk in 1682 off South Africa
($150-225)