Saint Thomas. Artist: Workshop of Simone Martini (Italian, Siena, active by 1315-died 1344 Avignon). Dimensions: Overall, with arched top and engaged frame, 11 5/8 x 8 5/8 in. (29.5 x 21.9 cm); painted surface 10 3/8 x 7 3/4 in. (26.4 x 19.7 cm). Date: ca. 1317-19.Six other panels from the series are known. All were owned by the German painter and collector Johann Anton Ramboux in the nineteenth century, and they formed either the predella or a row of figures above the main panels of an altarpiece. The saints were originally painted on one panel with a continuous frame (the frames are original, but have been painted an anomalous brown). The figures are based on cartoons prepared by Simone in the 1320s, but the execution was certainly entrusted to assistants. The panels have suffered from past cleanings. Museum: Metropolitan Museum of Art, New York, USA.