A blue colour twist wine glass, circa 1765 The generous bell bowl on a slender stem enclosing an opaque white multi-ply corkscrew edged on both sides in translucent blue, alternating with a single fine air spiral thread, over a conical foot, 16.8cm high Footnotes: Provenance Sotheby's, 15 June 1994, lot 458 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