CH'ING: local currency, 17th-19th century, AR bar (14.53g), local coinage with Chinese characters niÁn dong chang, Fine, R. Possibly a Chinese local issue. We could find no reference to this piece in any of our Chinese or Japanese references. NiÁn is a comman Chinese family name so this may be the name of the maker. See discussion on www.zeno.ru for item number 113894.
Estimate: 200-300 USD