Robert Campin and Workshop (South Netherlandish, Tournai, ca. 1375???1444)
Triptych with the Annunciation, known as the “Merode Altarpiece,” ca. 1427???32
Made in Tournai, South Netherlands
Oil on oak; Overall (open): 25 3/8 x 46 3/8 in. (64.5 x 117.8 cm) Central panel: 25 1/4 x 24 7/8 in. (64.1 x 63.2 cm) each wing: 25 3/8 x 10 3/4 in. (64.5 x 27.3 cm)
The Metropolitan Museum of Art, New York, The Cloisters Collection, 1956 (56.70a???c)
See Google Art Project for an in-depth look at this work.