AN AIRTWIST WINE-GLASS with a waisted funnel bowl, the stem filled with spiral threads, on a conical foot (minute chip to footrim and very slight rim chip), 16cm. high; and a pair of composite-stemmed wine-glasses, of drawn-trumpet shape, the stems filled with spiral air threads and set into beaded inverted baluster knops terminating in basal knops above conical feet (both with chips to footrims), 16cm. high, circa 1750 (3)