China; Tang Dynasty CE 618-907

AE Cash 19 mm, 3.53 g,
Schjöth 315 variety
O: Kai yuan tung Pao “The currency of the Kai-yuan period”
R: crescent at 120’clock

Purchased at China Treasury Antique Gallery, 61, Shamian Main St., Guangzhou, PRC for RMB 10 (1.22 USD) in 2002.

The Kai-yuan is the ubiquitous currency of the Tang period. Schjöth remarked that he even encountered them during his tenure in China in the 19th century (p.22).

Schjöth also states that the Kai-yuan “were practically minted uninterruptedly for three hundred years.” For the entire Tang period.