Auction introduction: Peak of Grandeur: a Fine Selection of Important Imperial Treasures is a collection of palace treasures across dynasties. Highlights of the sale are a fine and rare 'robin's egg'-glazed vase, zun, yongzheng period and a very rare and important ge-type ribbed vase, yongzheng period and a magnificent blue-and-white 'flowers and dragons' jar, zhadou, zhengde period.