 In 1937, a highly influential study by art historian Rodolfo Pallucchini had the effect of greatly increasing the number of works accepted to be by El Greco.Pallucchini attributed to El Greco a small triptych in the Galleria Estense at Modena on the basis of a signature on the painting on the back of the central panel on the Modena triptych ("", Created by the hand of Doménikos).There was consensus that the triptych was indeed an early work of El Greco and, therefore, Pallucchini's publication became the yardstick for attributions to the artist.