X-radiograph(s) of "Bishop and Donor (Madonna and Child for left part of diptich)"

X-Radiograph Description: X-Radiograph; Detail : reverse of the pannel with arms X-Radiograph Settings: 115 kv, 5 ma, 20 sec.; 15 kv, 5 ma, 25 sec.; 25 kv, 3 ma, 12 sec. Burroughs Number: 520 X-Radiograph(s) of: Artist: Benson, Ambrosius (?), Netherlandish, ca.1495-1550 Artist: Also att. to Provost, Jan, the younger, Netherlandish, ca.1465-1529 Artist: Also att. to Follower of Rogier van der Weyden Artist: Also att. to fragonard, Early Netherlandish Title: Bishop and Donor (Madonna and Child for left part of diptych) Date: 1480 Description: Oil (and tempera?) on panel; 56.3 cm. x 35.5 cm., actual Owner: Harvard University Art Museums Object Number: 1906.6.B