A VERY FINE BEIJING GLASS OVERLAY BOTTLE VASE, with a spherical body raised on a short tapering foot, surmounted by a tall cylindrical neck, well hollowed and carved through a layer of rich ruby glass to a snowstorm ground (hefengd)i with birds flying and perched among peony and prunus branches issuing from rockwork around the base, incised Qianlong four-character mark and of the period