Louis XVI pitcher

The master goldsmith/silversmith hallmark in a diamond shape is subdivided by a Saint Andrew's cross (an "X") with 4 distinct elements: At the top left: the initials J and M (for Jules Meresse, active in silverware and "doubled" metal from 1912). On the right: the readable inscription recessed DOUBLÉ (guaranteeing a thick silver plating). 2. Weight hallmark (Rectangular/square cartouche) Next to the diamond, the charge hallmark is marked 10 topped with a small goldsmith symbol. It indicates the exact amount of pure silver (10 grams) deposited during the silver plating process for this item.