TEMPEST TUMBLERS, SET OF 4

Mouthblown glass is produced by a glassblower blowing a long cylinder of molten glass called a muff. When the glass has cooled, it is cut along its length and then reheated so that the cylinder can be opened out into a flat sheet. The glass is generally referred to as handmade "antique" and is the best for making quality stained glass windows. The apparent "imperfections" in the glass - bubbles and reams - cause movement when looking through it. Each piece is unique and the thickness of glass will vary considerably from sheet to sheet as well as within each sheet. Therefore, the density of color will also vary.