Baccarat crystal champagne glass.
Not signed because made before 1936.
Height: 10 - 10,2 cm Diameter: 9,3 - 9,5 cm
Some little difference because hand made.
You will find this pattern in the 1916 Baccarat crystal catalogue .
Taille 5777, " Champigny " pattern:
You can download this catalogue here : CRISTAL DE BACCARAT CATALOGUE 1916 99 pages A TELECHARGER
Here is a converter inches / cm to help you with the dimensions: