Extremely rare 18th century Imperial Vienna soft paste porcelain tripod tureen and cover, c.1750, the cover with acorn knot finial, with round, shaped handle with incised lining, in white with restrained cobalt blue swirling cloud band decoration, set on three scalloped and shipped squat legs, underglaze beehive mark for Vienna, together with underglaze 'Imperial' caliper, height 9.5 diameter 11.5 width 17 cm