X-radiograph(s) of "St. Luke Painting the Virgin"

X-Radiograph Description: Negative X-Radiograph Settings: 25 kv, 5 ma, 15 sec. Burroughs Number: 1342 X-Radiograph(s) of: Artist: Master of the Holy Blood, Netherlandish, active early 16th century Artist: Also att. to School of Quentin Messys Title: St. Luke Painting the Virgin Date: ca.1520 Owner: Harvard University Art Museums Object Number: 1910.6