The actual painting is more tonal and show more contrast than the catalogue illustration would suggest.
The panel seems probably to either laid down on another panel or alternatively shaved down on the reverse. The painted surface seems to be in good condition with a craquelure pattern consistent of its age which is coarse in the green part upper right to a fine pattern upper right in the sky. No major damages seem to be apparent. The colors and some of the little impastos seem to be nicely preserved. Faint traces of underdrawing can be detected i.g. in the red clothing of Joseph.
The painted surface is covered with an old varnish layer which is discolored in places.
Under UV light
The varnish layer fluoresces in some places showing some retouchings in the face of Mary and some in the architecture part. A 5cm wide vertical opaque fluorescing band of (old?) varnish layer appears in the middle, possibly covering the join; some other opaque fluorescing patches are visible upper left and right side.
Offered with a new medieval-style wooden frame, some minor chips and damages. "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."