X-radiograph(s) of "Singing Boys"

X-Radiograph Description: X-Radiograph; Detail : head, little shows Burroughs Number: 2307 X-Radiograph(s) of: Artist: Hals, Frans (?), Dutch, ca.1581-1666 Title: Singing Boys Description: Canvas Owner: Staatliche Museen Kassel, Germany Object Number: 215