Milanese School, early 16th Century

The sheet has been detached from an old backing, some still visible on the verso. There was a loss at the lower centre near the the end of the Baptist's cross which has been made up. Thinning of the paper in places and surface dirt overall. Some light grey staining to the right of the profile and some pin point grey stains scattered all over the sheet.
"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. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

This drawing seems to date from the first half of the sixteenth century, and is closely derived from Leonardesque prototypes.  The classical profile head can be compared, for example, with a study by Leonardo at Windsor Castle.¹

1.  K. Clark, Leonardo da Vinci Drawings at Windsor Castle, London 1968, vol. I, p. 103, no.12554, vol. II, reproduced