19th century Louis XV style condiment holder, silver or silver-plated metal frame

19th century louis XV style condiment holder, shell decoration, in silver or silver-plated metal crystal reserves (one of which is added) for salt, pepper and mustard max dimensions: 14.8 X 13 X height 8.8 cm total weight: 428 grams in the absence of hallmarks, I am unable to certify the nature of the metal, which is most likely solid silver ultra secure shipping to destinations worldwide.