Attributed to Pomponio Amalteo

Unframed. The paper is laid down and made up slightly at the left edge. There are some slight vertical creases across the sheet. The left had edge is slightly discoloured and there is a short line of faint light brown spots near the upper left corner. Otherwise the drawing is in good condition and the chalk is still strong.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

Amalteo was the pupil and son-in-law of Pordenone.  The rearing horses are reminiscent of those in the fresco in Vittorio Veneto (formerly Ceneda) representing The Justice of Trajan, on which Amalteo collaborated with Pordenone circa 1534-1536.¹

1.  See C.E. Cohen, The Art of Giovanni Antonio da Pordenone, Between Language and Dialect, Cambridge 1996, vol. II, collaborative works 2, pp. 729-9, pls. 700-701