China, 1816 -1820 AD., Qing dynasty, emperor Ren Zong, Peking, Board of Works mint, old branch, 1 Cash, Hartill 22.499.

China, Qing (Ch'ing) dynasty (1644 - 1911 AD.), emperor: Ren Zong (Jen Tsung) (1796-1820 AD.), reign title: Jia Quing (Chia Ch'ing) (1796-1820 AD.), Peking (Beijing), Board of Works mint, old branch, 1816 -1820 AD.,
1 Cash (ø 23,5 mm / 3,58 g), cast bronze, square center hole, axes medal alignment ↑↑ (0°), smoothed edge,
Obv.: 嘉 - 慶 - 通 - 寶 , "Jia - Quing - tong - bao", straight reading: top - down - right - left around square center hole (open "bei", small "ji" in "Jia", square head, two dot "Tong", top stroke of "Bao" is a distinct dot, left hand stroke of the J of "Quing" straight).
Rev.: ᠪᠣᠣ - ᠶᡠᠸᠠᠨ , "Boo - Yuwan" in Manchu charcters flanking square center hole, top stroke of "Yuwan" slanting, turning up at end.
Hartill p. 319, no. 22.499 (rarity level 16, the most common) ; FD 2339 var. ; Schjöth 1491 var. .

The Jiaqing Emperor (Chinese: 嘉慶帝; pinyin: Jiāqìng Dì; Wade–Giles: Chia-ch'ing Ti; Mongolian: Sayishiyaltu Yirugertu Khaan, 13 November 1760 – 2 September 1820), personal name Aisin Gioro Yongyan, was the seventh emperor of the Manchu-led Qing dynasty, and the fifth Qing emperor to rule over China from 1796 to 1820. He was the 15th son of the Qianlong Emperor. During his reign, he prosecuted Heshen, the corrupt favourite of his father, and attempted to restore order within the Qing Empire and curb the smuggling of opium into China.

At the time, the Qing Empire faced internal disorder, most importantly the large-scale White Lotus (1796–1804) and Miao (1795–1806) rebellions, as well as an empty imperial treasury. The Jiaqing Emperor engaged in the pacification of the empire and the quelling of rebellions. He endeavored to bring China back to its 18th-century prosperity and power. However, due in part to large outflows of silver from the country as payment for the opium smuggled into China from British India, the economy declined.

more on https://en.wikipedia.org/wiki/Jiaqing_Emperor