Vintage granite liqueur service

Blue granite glass liquor service from the 1970s, originally from poland. It consists of a carafe with its glass cap and 6 glasses and offer a subtle gradient of blue, from the bottom of the glasses or carafe to the top. The whole thing is in excellent condition (see photos); are just to note, a kind of sail inside the cap (original defect) and a minimal chipping on one of the lenses, which the lens could not grasp. Dimensions (in cm): carafe h. 25 with cap (20 without), diameter about 7.5. Glasses h. 6.5 and diameter 3.8.