X-radiograph(s) of "Portrait of a Young Man"

X-Radiograph Description: X-Radiograph X-Radiograph Settings: 5 ma, 45 kv, 75 sec.; 5 ma, 45 kv, 60 sec.; 5 ma, 25 kv, 75 sec. Burroughs Number: 4195 X-Radiograph(s) of: Artist: Preda, Giovanni Ambrogio de, Italian, ca. 1455-after 1508 Title: Portrait of a Young Man Description: Canvas on 1/2" wood panel, cradled Owner: Harvard University Art Museums (Grenville L. Winthrop Collection) Object Number: 1943.1331