Rare 18th Century Multi Spiral Air Twist Dram Glass with Folded Foot c1745

Technical Description 

A rare 18th-century dram glass. It has a trumpet bowl above a multi spiral air twist stem with a conical folded foot with snapped pontil.

Folded feet air twist examples are very rare with approximately one percent having this attribute...a dram glass is even rarer.

Date & Origin 

England, c1750. Period of George II.

Condition

Excellent, Age-related wear as shown. No chips cracks or restoration 

Dimensions 

Height: 12.2cm Bowl Diameter: 5.6cm Foot diameter: 7cm.

Comments

In 1748 David Hume publishes An Enquiry Concerning Human Understanding and in 1754 Joseph Black discovers "fixed air" (carbon dioxide)