Slingeland's surviving portrait drawings are generally somewhat smaller than this, and a little less refined, but on the level of specific details, the handling seems close enough to his for the attribution to be plausible, and the composition is also very reminiscent of his paintings.
Laid down. Various losses/repairs, mainly in figure's sleeve, and in curtain, top right. Some light staining throughout, and surface somewhat rubbed in parts. Sold in a modern 17th century-style black wood frame 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.