Baccarat crystal champagne glass " Lagny " pattern.
This is one of the most famous pattern from the Baccarat crystal factory.
Heavy cut crystal with lots of work on it !!
You will find this pattern in the Baccarat's catalogue of the year 1933:
Dimensions: Height: 13 cm Diameter: 9,6 cm
Period: after 1936 because signed.
Perfect condition.
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Here is a converter inches / cm to help you with the dimensions: