X-radiograph(s) of "Armed Angel Principatus"

X-Radiograph Description: X-Radiograph X-Radiograph Settings: 5 ma, 40 kv, 1 3/4 min. Burroughs Number: 4128 X-Radiograph(s) of: Artist: Guariento di Arpo, Italian, 1338-1370 Title: Armed Angel Principatus Date: 14th century Description: Elmwood ? 1 1/8" thick Owner: Harvard University Art Museums Object Number: 1962.279