Set of ten belt buckles in silver or silver vermeil 800 thousandths with guilloché and enamelled decoration of various shapes, including : - blue-enameled square buckle, hallmark of M. O.: Paul GUILLON, active in Paris from 1899 to 1924; - blue-enameled oval buckle with gilded frieze decoration, M. O. hallmark: Charles GRAPPE, active in Paris from 1905 to 1923; 20th century. Total gross weight: 525 g