A turquoise-blue glass bottle vase. Wheel-cut mark and period of Qianlong. Photo Sotheby's the ovoid body surmounted by a long cylindrical neck ending in a sharply cut straight mouth, the glass of turquoise-blue colour and polished to a smooth gloss,...

An aubergine glass 'dragon' cup. Wheel-cut mark and period of Qianlong. photo courtesy Sotheby's the slightly tapering cylindrical body rising from a recessed base to an everted lipped rim, carved in low relief around the exterior with two ferocious scaly...

A turquoise glass censer, Palace workshops, Beijing. Wheel-cut mark and period of Qianlong. photo courtesy Sotheby's of bombé form, the plain opaque turquoise glass with rounded sides set on three short rounded legs, the slightly everted rim flanked by...