LONDON PRICE OF PILLAR PIECES OF EIGHT, PENCE PER OUNCE
Year Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec Ave
1718   67.00 67.50 65.00 65.25 65.38 66.13 65.75 65.00 64.75 66.00 65.75 65.77
1719 65.25 65.13 64.75 63.00 62.75 64.25 64.75 64.75 65.88 66.31 68.50 65.75 65.09
1720 66.25 65.50 65.25 64.75 64.50 64.50 64.75 67.50 68.00 65.00 68.00 66.50 65.88
1721 68.00   67.00 67.25 67.25 66.00 65.00 64.50 64.50 64.50 64.50 65.00 65.77
1722 65.00 64.50 64.25 63.75 63.75 63.75 63.75 63.75 63.75 63.75 65.25 65.00 64.19
1723 64.50 64.00 64.00 64.00 64.00 64.00 64.00 64.00 64.00 64.25 64.25 64.25 64.10
1724 64.25 64.00 64.00 64.00 64.13 64.00 64.25 64.38 64.38 64.38 64.88 64.50 64.26
1725 64.44 64.50 64.38 64.63 64.69 64.75 64.38 64.69 65.25 65.25 65.50 66.50 64.19
1726 67.00 65.13 64.75 65.13 64.50 64.00 64.50 64.31 64.44 65.00 65.50 65.00 64.94
1727 64.88 65.00 65.06 65.00 64.56 64.00 64.25 64.50 64.75 65.25 66.00 66.00 64.94
1728 66.00 65.50 65.00 65.56 65.63 65.81 66.00 66.13 66.13 66.38 66.38 66.38 65.91
1729 66.38 66.25 65.50 65.50 65.75 65.75 66.00 66.00 65.75 65.94 66.13 66.00 65.91
1730 66.00 65.88 66.00 65.69 65.56 65.94 65.50 65.50 65.38 65.50 65.50 65.25 65.64
1731 65.25 65.25 64.75 64.50 65.00 65.38 65.38 65.38 64.88 64.88 64.50 64.19 64.95
1732 64.44 64.56 64.63 64.63 64.63 64.63 64.69 64.63 64.63 64.81 65.44 65.44 64.76
1733 65.44 65.44 65.44 64.81 64.56 64.38 64.38 64.25 64.25 64.31 64.50 63.88 64.64
1734 62.50 62.25 62.75 62.56 62.63 62.63 62.44 62.50 62.25 62.25 62.25 62.25 62.44
1735 62.19 62.25 62.00 62.13 62.31 62.38 62.38 62.44 62.50 62.44 62.44 62.44 62.33
1736 62.44 62.56 62.63 62.88 62.88 62.88 63.00 63.56 63.56 63.50 63.44 63.25 63.05
1737 63.00 63.19 63.25 63.25 63.75 64.13 64.44 64.63 64.75 63.88 63.81 63.50 63.80
1738 63.25 63.44 63.50 63.56 63.56 63.56 63.56 63.56 63.56 63.63 64.25 64.44 63.66
1739 64.31 64.00 64.00 64.00 64.00 64.06 64.13 64.13 64.25 64.38 64.50 64.50 64.19
1740 65.13 65.50 66.50 65.00 64.50 65.00 66.25 66.50 66.25 66.25 66.50 67.00 65.87
1741 67.75 67.50 67.50 67.50 67.50 67.50 67.50 67.00 67.25 67.50 67.50 67.50 67.46
1742 68.00 67.50 67.56 67.56 66.25 66.31 66.25 66.25 66.25 66.25 66.25 67.13 66.80
1743 66.75 66.75 66.75 66.63 66.56 66.00 65.75 65.75 65.75 65.75 66.50 66.50 66.29
1744 67.13 67.50 67.50 66.75 66.44 65.88 65.50 65.63 65.13 66.13 68.00 67.25 66.57
1745 67.63 66.81 67.06 66.13 66.00 66.00 66.13 65.25 64.50 64.00 62.00 60.00 65.13
1746 60.50 60.75 63.63 62.25 62.63 62.88 62.88 63.25 63.00 63.50 64.00 65.00 62.86
1747 65.00 65.00 64.13 63.75 64.00 64.00 63.75 63.75 64.25 64.25 64.00 64.00 64.16
1748 63.50 63.50 63.75 63.50 63.63 63.81 63.75 63.75 63.88 63.88 64.50 64.88 63.86
1749 64.88 64.50 64.19 63.50 63.50 63.50 63.75 62.56 62.88 64.25 64.38 64.13 63.84
1750 63.75 64.00 64.25 64.50 64.50 64.50 63.75 63.75 64.31 64.50 65.06 65.63 64.38
1751 64.00 63.81 63.50 63.75 63.75 63.88 63.75 63.69 64.25 64.69 64.75 64.75 64.05
1752 64.75 64.75 64.75 64.88 65.13 65.00 65.13 65.44 65.44 65.50 65.63 65.75 65.18
1753 65.75 65.75 65.75 65.88 65.81 65.81 66.00 65.88 66.06 66.38 66.25 66.19 65.96
1754 65.75 65.88 65.31 65.44 64.88 64.75 65.06 65.63 65.38 64.75 64.69 64.50 65.17
1755 64.00 63.25 63.50 63.88 63.13 63.38 63.38 63.38 63.38 63.38 63.50 64.00 63.51
1756 64.00 63.50 63.50 63.63 63.63 63.50 63.25 63.00 62.75 62.75 62.50 62.50 63.21
1757 62.25 62.38 62.50 62.50 62.75 64.00 64.38 64.38 64.38 64.38 64.13 64.75 63.57
1758 64.31 64.25 66.00 66.25 67.00 67.25 67.50 67.50 67.50 66.75 66.63 66.88 66.49
1759 67.69 67.44 67.50 67.00 66.75 67.00 66.75 67.00 65.00 65.56 65.06 65.50 66.52
1760 65.75 65.38 65.75 65.50 65.38 65.25 65.50 66.00 66.25 66.63 67.00 68.00 66.03
1761 67.75 67.75 68.00 68.25 68.50 68.00 68.00 68.00 66.38 66.25 65.25 65.25 67.28
1762 66.00 66.50 67.25 67.00 66.00 65.00 65.00 65.00 63.50 63.50 63.75 64.00 65.21
1763 64.75 64.50 65.19 65.50 66.50 65.25 65.50 68.00 65.13 63.75 63.75 63.25 65.09
1764 62.75 62.13 62.00 62.25 62.25 62.13 62.13 62.13 62.25 62.25 62.25 62.13 62.22
1765 63.00 63.00 63.00 63.00 63.00 63.13 63.25 63.50 63.88 64.00 64.50 64.13 63.45
1766 64.75 65.25 65.00 65.00 65.50 65.50 65.50 65.00 65.00 65.25 65.25 65.13 65.18
1767 65.13 65.00 64.75 65.25 65.75 65.13 65.00 64.88 64.63 64.88 64.63 64.38 64.95
1768 64.13 64.13 64.38 66.38 65.50 65.75 64.13 64.50 64.63 65.00 65.50 65.50 64.96
1769 66.00 65.25 65.13 65.25 65.25 65.50 65.75 65.75 66.00 66.00 66.00 66.25 65.68
1770 66.25 66.25 66.25 66.38 66.25 66.25 66.50 66.50 66.50 66.25 66.13 66.00 66.29
1771 66.00 66.13 66.25 66.63 66.00 66.00 65.75 65.75 66.00 66.00 66.25 66.50 66.11
1772 66.75 66.25 66.25 66.75 66.75 66.75 65.00 64.25 64.25 64.50 64.25 64.00 65.48
1773 64.00 64.00 64.00 64.00 62.44 62.63 62.63 62.31 62.31 62.13 62.00 61.25 62.81
1774 61.50 61.50 61.56 61.75 63.00 61.50 61.63 62.00 62.75 63.19 63.19 63.13 62.23
1775 63.25 63.38 63.38 63.69 63.63 63.13 63.13 63.13 63.81 64.00 64.00 63.50 63.50
Source: John Castaing's The Course of Exchange, where observations are from the middle of the month, so as to be consistent with McCusker, Money and Exchange in America, 1600-1775.
For discussion see McCusker, pp. 29-30, and footnote 10, p. 30.