X-radiograph(s) of "Crucifixion with Three Saints on reverse"

X-Radiograph Description: X-Radiograph Burroughs Number: 3441 X-Radiograph(s) of: Artist: Lorenzo d'Alessandro da San Severino (?), Italian, 1440 or 1450-1503 Title: Crucifixion with Three Saints on reverse Owner: Warburg Collection, New York