Watch List notes:

Potosi, Bolivia, cob 8 reales, 1652E post-transitional (Transitional Type VIII/B), 1-PH-6 at top.S-P37a; KM-21; Cal-1500.23.86 grams.Corroded yet solid example with two dates visible, bold pillars and cross, a few spots of horn silver.From: Capitana, sunk in 1654 off Chanduy, Ecuador
($200-300)