1 Cash - Guangxu Tongbao, Boo-jiyen

The Boo-jiyen mint — the Board of Revenue's western mint in Beijing — was one of the few facilities still striking traditional cast cash in the final decades of the Qing dynasty, even as machine-struck coinage was being introduced elsewhere in China. By the 1890s, cast cash had become economically marginal; the copper content of the coins frequently exceeded their face value, incentivizing melting. Hartill 22.1460 places this squarely within the dying tradition.

Production at Boo-jiyen was intermittent and often suspended due to raw material shortages.