A Commonwealth Silver Basin, maker's mark TP between two pellets, London, 1659

circular with reeded rim, the border engraved with arms beneath a ribbon-tied foliate mantle and an presentation inscription, the deep well with domed center engraved with later arms in strapwork cartouche 

molded rim presumably formed later as over marks, as noted regarding engraving
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.

The presentation inscription reads: "Ex dono Thomas Davies of the City of London Esq. 1659".

The probably later engraving shows the arms of the city of Oxford in the center and those of Davies on the border.