C1770. Copper-line engraving with later hand-colouring. C1770. 250mm by 185mm (sheet). Copper-line engraving with later hand-colouring, from Duhamel du Monceau's 'Traite des Arbres Fruitiers', circa 1770. Duhamel du Monceau (1700-1782) was one of outstanding botanists and horticulturists of the 18th century, and among the most important French writers on fruit.....