42. PETIT VASE EN VERRE BLEU Marque et probablement époque Yongzheng (1723-1735) A SMALL BLUE GLASS BOTTLE VASE Yongzheng four-character mark and possibly of the period With a compressed globular body raised on a short splayed foot, rising to a tall cylindrical neck, the glass a translucent blue tone suffused with bubbles, the base with an incised four-character mark within a square frame. 14.5cm (5 3/4in) high. 或清雍正 藍料長頸瓶 「雍正年製」款 Two small blue glass vases each bearing a four-character Yongzheng mark from the Plesch collection, were sold in Christie's London, 16 November 1998, lots 289 and 315.