Set of 2 vintage cups in pink bubbled glass - Glasses Blown glass CHOPPY Biot?

These two delightful chopes glasses are made of bubbled glass in marbled pink color. The handle is applied hot. These cups are mouth-blown according to an artisanal technique and are therefore irregular. The color is a pretty old pink, one of the cups is bluish at the bottom. Bubbled glass captures light differently and has a soft and delicate texture. Perhaps from biot or artisanal glassware: bubbled glass has existed in france in biot since 1956, glassmakers succeed by mastering the bubble, to imprint it between two layers of glass, thus making a defect a quality. In good condition, these two mugs measure about 11.5 cm X 8 cm in diameter. They are not signed and have defects (burst bubbles, elongated bubbles, small bursts).