Rare Engraved 18th Century Air Twist Wine Glass C1750

Technical Description An exceptional 18th-century wine glass dating to c1750. It has an ogee bowl engraved with a wild Rose, a Sunflower and a Lilly of the valley. Sits on double series air twist stem consisting of two pairs of mercury corkscrews outside a single air thread. Conical foot. The engravings are very nice and the flowers could have some significance but it's really the twist that makes this glass stand out...we don’t recall ever seeing another glass with two pairs of mercury corkscrews outside a thread...the thread being very clear from top to bottom...a rare pattern indeed. The pair of corkscrews could easily be mistaken for a multi-spiral air twist; however, they are corkscrews and as expected reflect light. Date & Origin England, c1750. Period of George II. Dimensions Height: 15.3cm Rim diameter: 4.9cm Foot diameter: 6.8cm