Set of 9 Louis Philippe tulip champagne flutes with flat sides mid 19th

Rare set of 9 louis philippe 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 material and hyper modern form, just flat ribs to catch the sparkling light of the candles and illuminate the delicacy of the champagne wine. Little wonders of glass, subtle and absolute. Height 17.2cm. Drinking diameter 5.5cm.