Roman School, Apollo and Diana, a partial copy of a frieze by Polidoro di Caravaggion depicting The Punishment of Niobe. Pen and brown ink with wash and white heightening; 9 3/16 x 14 1/8 in. (235 x 359 mm). Photo courtesy C. G. Boerner.

C. G. Boerner. 'Old Master Drawings from Osberton Hall'. 23 East 73rd Street, New York, NY 10021. Telephone: +1 212 772 7330 - Fax: +1 212 772 7334 - Email: info@cgboerner.com - Website: www.cgboerner.com. Master Drawings New York. Saturday 25 January to Saturday 1 February 2014