Description Of unusual boat or ingot-form, finely decorated with the eight Daoist immortals in underglaze blue, and red waves, the interior centered by Shoulao and a deer among waves and clouds, a four-character hall mark reading "yuyan shuwu" within a double-square in underglaze blue to the underside.(L: 5 5/8 in. )PROVENANCE:Property formerly in a Main Line, Philadelphia, private collectionNOTE:The mark "yuyan shuwu" (Library of Washing Inkstone) was used during the Yongzheng (1723-1735) and Qianlong (1736-1795) reigns.來源：費城Main Line私人舊藏註：“浴硯書屋”款識為雍正（1723-1735）與乾隆（1736-1795）時期所用