Giovanni Francesco Barbieri, called il Guercino (Cento 1591-1666 Bologna) Study of Saint Matthew turned to his right, reading a book. photo Bonhams black chalk on paper laid on card, 167 x 145 mm. (6 5/8 x 5 3/4 in.), unframed. Sold for £14,400 PROVENANCE::...

Giovanni Battista Tiepolo (Venice 1696 - 1770 Madrid) The Brazen Serpent Black chalk; on the verso a tracing of the woman and child to the left of the composition; bears old attribution in pen and ink: Tita Tiepolo. 347 by 250 mm. Est. 5,000—7,000 USD....