1 Cash - Tianhan Yuanbao

The Former Shu was a short-lived kingdom occupying Sichuan during the Five Dynasties period, and Wang Jian — its founder — declared himself emperor in 907 after the Tang collapse left the southwest effectively ungoverned. The Tianhan reign period lasted only from 917 to 918, making this a single-year issue from a reign title that itself survived less than two years before Wang Jian died and his son Wang Zongyan renamed the era. Surviving examples are accordingly scarce, with most attributable pieces showing heavy circulation consistent with a provincial economy that had little choice but to use whatever coinage the local court produced.