X-radiograph(s) of "Crucifixion"

X-Radiograph Description: 4 X-radiographs : central pannel (top, middle and bottom) (Christ on the Cross between the Virgin and Saints Mary Magdalene and John the Evangelist).; 1 X-ray : central panel with hinges and metal security plates.; 2 X-rays : lateral wings (left panel: The Agony in the Garden and Saints Peter and Paul; right panel: Saints Catherine of Alexandria and Margaret of Antioch, Saints James Major and Benedict); Size : 3 X-rays 14 x 17; 4 X-rays 7 x 11 X-Radiograph Settings: 25 kv, 5 ma, 20 sec.; 5 ma, 37 1/2 kv, 2 min. Burroughs Number: 506 X-Radiograph(s) of: Artist: Follower of Bernardo Daddi, Italian Title: Crucifixion Date: 1334 Description: Tempera and gold leaf on panel (poplar ?) with engaged frame; 62.3 cm x 54.2 cm Owner: Harvard University Art Museums Object Number: 1918.33