Set of 6 Antique Diamond Point Glass or Crystal Knife Rests

Length: 10cm set of 6 old glass or crystal knife rests. Given their shine in the sun, I would say that it is crystal, but I cannot say for sure. Small scratches from use and small chips. Diamond-shaped. See photos to see the exact condition. For everyday use, for festive meals (christmas, easter, birthdays, etc.) or as a decorative object. No signature.