6 knife holders in cut crystal

Beautiful set of 6 identical crystal knife holders (lead 24% pbo, one still bears the label certifying it). They are elegant, the crystal, well transparent, is finely chiseled under the base, with a star pattern framed by grids and lines, which recalls the codes of art deco. The upper edge has two rounded hollows to each receive two knives (the one for meat and the one for fish). They are in very good condition: neither cracked nor shine, I do not even detect a scratch. They measure 9 cm in length by 2 cm in height and 1.8 cm in base width and weigh about fifty grams each (the lot weighs about 300g).