X-radiograph(s) of "Mystic Marriage of St. Catherine"

X-Radiograph Description: X-Radiograph; Number: 2 (stereo); Portion of picture covered: Center half Burroughs Number: 3574 X-Radiograph(s) of: Artist: Angelico (?), Fra (called Giovanni da Fiesole, Guido di Piero), Italian, 1400-1450 Title: Mystic Marriage of St. Catherine Owner: Salem Collection, Housed at Houghton Library, Harvard University Art Museums Object Number: 7659