Who created "Saint John the Baptist and San Bernardo degli Uberti"?

Saint John the Baptist and San Bernardo degli Uberti was created by Andrea del Sarto in n.d..

What medium is "Saint John the Baptist and San Bernardo degli Uberti"?

Saint John the Baptist and San Bernardo degli Uberti is Black and red chalk on tan laid paper, laid down on card.

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Andrea del Sarto, n.d.