10 Cash - Tongzhi Zhongbao, Boo-chiowan

The Tongzhi reign (1862–1874) saw the Board of Revenue mint in Beijing struggling to maintain the bimetallic cash system that had already been badly destabilized by the massive Taiping Rebellion. Copper shortages drove a gradual shift toward brass alloys across multiple mints during this period, and the Board of Revenue issues reflect that transition directly in their metallurgy.

Hartill 22.1129 is among the more consistently produced types from Boo-chiowan, though output varied considerably year to year as the Qing fiscal administration attempted to rationalize a coinage system that had fragmented badly under wartime pressures.