X-radiograph(s) of "Joseph Willard (?)"

X-Radiograph Description: X-Radiograph X-Radiograph Settings: 25 kv, 5 ma, 24 sec. Burroughs Number: 3420 X-Radiograph(s) of: Artist: Greenwood, John, American, 1727-1792 Artist: Also att. to American School Title: Joseph Willard (?) Owner: Ms. Marie Collins, NY