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possibly c. 1770
second half 18th century
c. 1750
c. 1711
18th century
c. 1790/1795
c. 1770
1801
ca. 1800
ca. 1790–95
ca. 1784–89
Late 18th century
ca. 1782–90
ca. 1780
late 18th or early 19th century
ca. 1775
ca. 1775–85
late 18th century
1770–85
1770–90
