Riedel (RIEDEL) Riedel O O Champagne 220ml, Set of 2 Champagne glasses for casual enjoyment. This stemmed type is currently only available for wine and beer, so the champagne version is very rare. Thin, smooth on the mouth, and very light. Purchased about 20 years ago and used about 3 times. One glass has a scratch (see photo). Since this is a personal inspection, there may be other minor scratches. I washed it with baking soda, but some water stains remain. Thank you for your understanding. Since there is no original box, I will pack it carefully and ship it.