Collection of 37 Potosi, Bolivia, cob 1/2R, all dated, as follows: 1657, 1660, 1662, 1663, 1665, 1666, 1667 (Charles II), 1674, 1675, 1677, 1678, 1680, 1682, 1683, 1685, 1686, 1687, 1688 (2), 1689, 1690, 1692, 1696, 1710, 1716, 1723, 1733, 1739, 1740, 1742 (2), 1748, 1750, 1758, 1760 (Charles III), 1761 and 1762. 56.15 grams total. Fine on average, nearly all toned, generally clear dates and crosses and monograms, some salvaged, the 1660, 1663 and 1761 holed. SEE INTERNET FOR PHOTO. (Estimate: $1000 - 1500)