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

X-Radiograph Description: Negative (1 large X-Ray negative shows canvas, not much paint; 2 negatives 8x10 show canvas+craquelure) Burroughs Number: 3844 X-Radiograph(s) of: Artist: Terborch, Gerard II, Dutch, 1617-1681 Title: Portrait of a Man Owner: Fernald