A very fine wine glass having a bucket bowl with solid base over a mercury twist stem with a knop at the shoulder and the base, all on a plain conical foot ,

Height 6 1/16th ins 15.4 cm

a lovely glass in perfect original condition with just a small piece of frit at the top of the twist and some stable bubbles in the foot to mention.

The combination of bucket bowl and double knopped mercury stem makes this a rare example.