I'll be happy to answer any question: feel free to ask.
This is a superb antique glass.
Heavy cut crystal
BACCARAT crystal from early XIXth Century.
Catalog of the year 1841.
Hight: about 9,3 cm
Diameter: about 5,2 cm
Period: 1840 - 1850
PERFECT CONDITION
A few air bubbles or little spots attesting the age of these museum pieces.
AUTHENTIC !
Here is a converter inches / cm to help you with the dimensions: