A French 18th century marble urn with exquisite ormolu mounts in the Stockholm Royal Palace. It is of the same design as the porphyry urn in the Wallace Collection in London made c 1764 probably after a design by Charles de Wailly (1730-98).

A French porphyry urn on the stairs in the Wallace Collection sculpted c. 1764 by Jacques Adam after a design by Charles de Wailly (1730-98) for Marc-René d'Argenson, marquis de Voyer. The exquisite ormolu mounts were made by the sculptor and royal goldsmith Robert-Joseph Auguste (1723-1805).