Period: Early Imperial
Date: mid–1st century A.D.
Culture: Roman
Medium: Glass
Dimensions: H.: 1 7/8 in. (4.8 cm) Diam.: 7 1/8 in. (18.1 cm)

Deeply colored monochrome glass was very popular in the early Roman blown-glass industry, and it was only after about A.D. 50 that colorless and naturally colored blue-green glass came into widespread use.