Set of 3 vierzon crystal glasses emma model 1930 1940

Set of 3 cut crystal champagne glasses, they are from the vierzon glassworks (cher) and were created in 1887 by paul and albert thouvenin (france). They are finely engraved with pretty spiral friezes and flowers, entirely hand-blown, they are of the emma model and date from the 1930s and 1940s. They measure 11.5 cm high, diameter at the rim 9.8 cm, in superb condition available for sale