19th Century French Pewter Pot a Bullion, (soup Carrier)

A beautiful piece of French Pewter dating from the first half of the 19th century, the name for this piece is a Pot a Bouillion or soup carrier sometimes known as a sustanier it has a crowned X mark on the lid and base although this mark is common on English especially London pewter it is used, although less frequently, by French pewterers it still has its original inner lid, the three holes in base is to release the air bubbles when stood in hot water to heat the food it stands 18 cms high and 12 cms in diameter thanks for looking