IMAGE Virgin with Child (Forgery) Virgin with Child, circa 1920. Tests of this painting, by an unknown Italian forger of the 1920's revealed that the purportedly ancient wormholes in the panel had been made with a drill (they were straight, not crooked) and the Virgin's robe was painted using Prussian Blue, a pigment not invented until the 18th century. Source: "A History of Art Forgery" CD-ROM by Joe Dolice for The New Rochelle Council on The Arts.