Authenticity 100% guaranteed
Super rare example of antique russian imperial glass.
Stunning cobalt blue color beaker - cup.
Hand cut and hand decorated with gold.
Unmarked.
About 3 1/8 in. (8 cm) tall.
Feels heavy for the size -  about 193 grams.
Excellent original antique condition with minimum amount of normal wear. 
No chips - no cracks - no repairs.