Italian, Venice, second half 14th/ early 15th century

There is some surface weathering consistent with age as visible in the catalogue photo. There are small restorations including areas to the right hand of the angel, his forehead, the halo, and the cornice. Otherwise to overall condition is good.
"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 relief would have originally formed part of a Venetian sarcophagus, paired with a Virgin of the Annunciation and flanking a relief with the Virgin and Child or alternatively Christ in Majesty.  Compare in particular with the tomb of Doge Andrea Contarini (died 1382) in Santo Stefano, Venice illustrated by Wolters.  The tomb would either have been set against a wall or formed part of a larger monument as in the tomb of Bishop Salomone (died 1322) in Treviso Cathedral. Further comparisons exist with the reliefs in the Toledo Museum of Art, illustrated by Gillerman, as well as with those in Berlin, or examples in the Museo Civico Turin, illustrated by Mallé, dated there to the early fifteenth century, each paired with a standing Virgin.

RELATED LITERATURE
W. Wolters, La Scultura veneziana gotica (Venice, 1976) figs. 42, 45, 240; D. Gillerman, Gothic Sculpture in American, Vol II, the Museums of the Midwest (Turnhout, 2001) no. 276; L. Mallé, Le Sculture del Museum d'Arte Antica, Museo Civico di Torino (Turin, 1965) pl. 52b, 53b