Watch List notes:

Potosi, Bolivia, cob 4 reales, 1680V. S-P39; KM-25; CT-507. 10.37 grams. Very choice full pillars-and-waves and cross-lions-castles, two dates and assayer, three mintmarks, still somewhat thin but nowhere near the usual amount of corrosion, also lovely toning, a real shipwreck gem. With ROBCAR photo-certificate #M180121. Recovered from: Consolacion, sunk in 1681 off Santa Clara Island, Ecuador
(350 - 500 USD)