X-radiograph(s) of "Vladislav IV (copy ?)"

X-Radiograph Description: X-Radiograph; Detail : head Burroughs Number: 1759 X-Radiograph(s) of: Artist: Rubens, Peter Paul (?), Flemish, 1577-1640 Artist: Or Thulden, Theodor van (?), Flemish, 1606-1669 Title: Vladislav IV (copy ?) Description: Canvas Owner: Metropolitan Museum, New York Object Number: 29.100