Potosi, Bolivia, cob 4 reales, 1727Y, (Louis I), rare. S-P43b; KM-A35; CT-30b. 12.88 grams. One full pillar with bold mintmark, two partial assayers, weak date, bold cross with second date below, light corrosion, good toning, sharp point in edge. Recovered from: Princess Louisa, sunk in 1743 off the Cape Verde Islands, west of Africa (Estimate: $200 - 300)