S. Tumidei, in Il Michelangelo incognito. Alessandro Menganti e le arti a Bologna nell'età della controriforma, exhibition catalogue, Bologna 2002, pp. 82-84 and 108, reproduced.

The panel has been thinned and cradled. A few small losses can be seen in foliage upper center and in upper right quadrant. The surface overall is uneven in appearance due partly to the panel itself, and to numerous vertical cracks that have developed over time. Despite this, the paint layer is mostly stable and detail, especially in the figure, is very nicely preserved. Under UV light: there are retouches along most of the old cracks and fissures, especially in the lower part of her drapery. Others are scattered in background areas, on her left foot and on both arms. Her face looks quite good with only a few tiny retouches. Offered in a carved and gilt 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.