6 crystal glasses saint louis, model cato, xxth century

6 small old crystal glasses of the cato de saint louis model dating from the early twentieth century (before 1936 because unsigned). In good condition. No shine. Flared shape. Difference in the number of flat ribs on the lower part (between 9 and 11). Different height between 11 and 11.5 cm. Diameter at the drinker 6.7 cm. Diameter under the glass between 5.5 and 6.5 cm. Also available are 5 small glasses of the same glass model.