An engraved airtwist cordial glass and an opaque twist cordial glass, circa 1750-1765 The first with a round funnel bowl solid at the base, decorated around the bowl with a stylised floral spray, on a double-series stem enclosing a pair of multi-ply spiral bands outside a pair of 'mercury twist' corkscrews, over a conical foot, 16.2cm high, the other with a small ogee bowl moulded with fine flutes to the lower part, on a double-series stem containing four heavy opaque white spiral threads outside a gauze column, over a conical foot, 15.1cm high (2) For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing