5 vintage bubble glass cups from Biot

5 large cups from the 60s / 70s in bubbled glass from biot: a "pink of the sands", a frank green, a lime green and 2 amethyst. Heavy and massive cups with a height of about 10cm (artisanal manufacture, small differences in size between them), diameter at the neck between 8.5 and 9cm approximately, base diameter about 7cm. Weight of the set 2, 210kg. They are in good condition, without shine or crack. Note some friction stripes (see on the linden-colored glass and on an amethyst). All are signed.