The Portland Vase - 2 - 25 A.D. Cameo-glass vessel Theme = love. Mythological scenes. Had a pointed
The Portland Vase - 2 - 25 A.D. Cameo-glass vessel Theme = love. Mythological scenes. Had a pointed base, but this broke off. Violet-blue glass dipped in white glass, and the two are fired together. White glass layer then removed to create image beneath. Probably by a skilled gem-cutter. -- source link