Watch List notes:

Potosi, Bolivia, cob 4 reales, 1679V. S-P39; KM-25; CT-506. 9.72 grams. Choice full pillars-and-waves and cross (the latter off-center), thin from corrosion but not so pitted as most, nicely toned. With ROBCAR photo-certificate #M180120. Recovered from: Consolacion, sunk in 1681 off Santa Clara Island, Ecuador
(150 - 225 USD)