Enameled Goblet

This goblet is made using mezza-stampatura, also known as mezza-forma (Italian, “half mold”). With this technique, vertical ribs are made on the lower part of a blown object by inflating the bottom half of the parison into a dip mold. Credit: Corning Museum of Glass https://www.youtube.com/channel/UCAmsTmQTOPbSfXs6QIDgGXg