The product is a 1821-1850 China 1 Cash Daoguang coin, also known as Boo Chiowan. This circulated brass coin originates from China during the historical period of the Empire. It has not been graded or certified, and features a unique KM Number of Hartill# 22.633. The coin holds cultural significance as a piece of Asian numismatic history, showcasing the artistry and craftsmanship of Chinese coinage during the early 19th century.