清代云南“通宝觧银”三槽五両银锭,42x36.4x15毫米, 重184.8克,中乾AU50,其型制为光绪中叶建立公估制度后逐步演变为牌坊锭的基础,稀少。China, Qing Dynasty, Yunnan Province, [Zhong Qian AU50] triple-trough silver 5 tael sycee, 1796-1884, stamped Tong Bao Jie Yin thrice, 42x36.4x15mm, weighs 184.8g, a precursor to the standardised Chinese gateway or horse saddle shaped silver sycees of the region, a seldom encountered type





















