Watch List notes:

Potosi, Bolivia, cob 8 reales, 1731 M. S-P44; KM-31a; Cal-1564. 17.97 grams. Clear date and assayer above bold full waves, most of cross with bold mintmark to left and partial second date below, moderately corroded with contrasting burgundy toning throughout. With original tag and photo-certificate 970049 from Uruguay.Recovered from: Luz, sunk in 1752 off Montevideo, Uruguay.

Estimate: $200 - $300