A rare four-knopped airtwist wine glass, circa 1750 The bell bowl set on a multi-spiral airtwist stem with four evenly spaced knops of graduated size, over a conical foot, 17.8cm high Footnotes: Provenance Sotheby's, 15 December 1998, lot 59 (part) A similar quadruple-knopped glass from the A C Hubbard Jr Collection was sold by Bonhams on 30 May 2012, lot 44. This lot is subject to the following lot symbols: * * VAT on imported items at a preferential rate of 5% on Hammer Price and the prevailing rate on Buyer's Premium. For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing