Giovanni Stanchi (Rome c. 1645-1672). Oil on canvas. 38 5/8 x 52½ in. (98 x 133.5 cm.) / Courtesy Christie’s A 17th-Century Stanchi Painting Reveals the Rapid Change in Watermelons through Selective Breeding [Updated] Old master work paintings are frequently cited for their depiction of historical events, documentation of culture, or portraiture of significant people, but there’s one lesser known