Emmanuel de GHENDT (Flanders 1738 - Paris 1815) Nicolas de LAUNAY (Paris 1739 - 1792) Jean Francois ROUSSEAU (Paris 1740 -?) "Allegories of the Four Continents" Four original etchings from Gravelot subjects for the collection entitled " Iconologie, o Traité de la Science des Allegories à l'usage des Artistes "published in Paris by the publisher LePan in 1791. Beautiful copies in original edition, printed on typical eighteenth-century laid paper, with margins of different sizes, some very large, beyond the imprint of the slab, in a generally perfect state of conservation. Bibliography: Milesi "Dictionary of Engravers" Bergamo 1989 p. 162, 205, 280. Portalis - Beraldi "Les Graveurs ..." Paris 1881 tome 2 p. 309 n ° 36, tome 2 p. 551 n ° 71, tome 3 p. 414 No. 4. Measurements in mm: 160ca x 108ca