Set of 9 19th century champagne flutes with flat cut edges

Rare set of 9 19th century champagne flutes, in flat ribbed glass. There is no ostentatious project here, nothing virtuoso or luxurious flashiness, no noisy appearance. On the contrary, a nobility of simplicity, a rigor of barely irregular material and a hyper modern flared shape, with just flat ribs to catch the light of the candles and illuminate the delicacy of the champagne wine. Little wonders of glass, subtle and absolute. Height 16.5cm. Drinking diameter 5.8cm.