X-radiograph(s) of "Madonna, Child and Two Saints"

X-Radiograph Description: X-radiograph; Detail : head of Magdalen; head of Catherine; heads of virgin and Child Burroughs Number: 1222 X-Radiograph(s) of: Artist: Lorenzetti, Pietro, Italian, act. by 1306-died ca.1348 Title: Madonna, Child and Two Saints Date: ca.1321 Description: Wood Owner: Warburg Collection, New York