Technical Description A rare example of an 18th century opaque twist wine glass dating to c1760.It has a bell bowl above a triple series opaque twist stem consisting of a pair of 6-ply spiral bands (element 1), outside a pair of spiral gauzes (element 2), the gauzes containing solid spiral cores (element 3). Conical foot.CommentsA triple twist is defined as having three independent elements, each element being different. For instance a stem containing 3 spiral gauzes is defined a single series as all element are the same and perform the same action within the stem. A pair of spiral gauzes outside a solid core is a defined as double series. So it is NOT the number of elements that count but what the elements do, that dictates their classification.A triple series occurs in approx. 1-300 ratio within the opaque twist stem classification. Date & Origin England, c1760. Period of George III.ConditionExcellent, age-related wear as shown. No chips, cra...