AN IMPERIAL YELLOW-GLAZED BOWL, DAOGUANG MARK AND PERIODChina, 1821-1850. The deep rounded sides supported on a short foot and rising to an everted rim, applied overall with a rich yellow glaze of even tone. The white base with an underglaze-blue six-character seal markda Qing Daoguang nianzhi and of the period.Provenance: Ago von Maltzan, acquired in Beijing between 1912 and 1916, and thence by descent within the same family. Adolf Georg Otto “Ago” von Maltzan, Freiherr zu Wartenberg und Penzlin (1877-1927), was a preeminent German diplomat of the Weimar Republic, who served in Beijing between 1912 and 1916, after posts in Kristiania (1909), St. Petersburg (1911), and Rio de Janeiro (1907). As the Permanent Under-Secretary for Foreign Affairs, he was a signatory of the Treaty of Rapallo (1922) between Germany and Soviet Russia, under which both countries renounced all territorial and financial claims against each other and opened friendly diplomatic relations. From 1924, he served as Ambassador to the United States in Washington, D.C. The Vossische Zeitung, a nationally known Berlin newspaper that represented the interests of the liberal middle class and was generally regarded as Germany's national newspaper of record, described Maltzan as the mostpetent diplomat that Germany ever had.Condition: Some old wear as expected, minor firing irregularities, one side with a forked hairline.Weight: 258 gDimensions: 14.7 cmAuction resultparison:Type: Near identicalAuction: Sotheby’s Hong Kong, 26 May 2021, lot 349Price: HKD 100,800 or approx.EUR 12,000 converted and adjusted for inflation at the time of writingDescription: A yellow-glazed bowl, seal mark and period of DaoguangExpert remark:pare the closely related form, glaze, Daoguang seal mark, and size (14.8 cm)Auction resultparison:Type: Near identicalAuction: Sotheby’s London, 10 November 2017, lot 208Price: GBP 10,000 or approx.EUR 13,500 converted and adjusted for inflation at the time of writingDescription: A yellow-glazed bowl, Daoguang seal mark and periodExpert remark:pare the closely related form, glaze, Daoguang seal mark, and size (14.6 cm)道光款及年代黃釉碗中國，1821-1850年。碗深腹，碗沿外翻，圈足，胎體輕薄。通體施黃釉，釉面嬌美勻淨。圈足內白地青花雙圈“大清道光年製”款。