Poland Lithuania and Prussia, 1760

1760 Thomas Jeffreys (engraver/geographer/publisher): “Poland Lithuania and Prussia,” which he engraved for the first, 1749, edition of “A new geographical and historical grammar…” by historian Thomas Salmon. Commonly said to have gone through 14 editions, my own research shows that there were at least 21 separate editions, the last in 1785. The only changes in that plate over 36 years were to the cartouche, which I believe exists in four types, A, B, C, and D. Illustrations of each type, and the complete publishing history of the map, are on the page “MapmakersG-L.”