china ,19th C, elegantly potted with a pear-shaped body sweeping up to a waisted neck and a broad everted rim, supported on a short slightly splayed foot, richly applied to the exterior with sapphire blue glaze, the reserved base left white and inscribed with a six-character reign mark within a double-circle Provenance: From a important private Maryland collector acquired in German " Auktionsabrechnung" on Jan 26 2016