A [[coin]] with a hole in the center. Commonly seen on the Chinese "cash":[https://en.wikipedia.org/wiki/Cash_(Chinese_coin)] and Japanese yen coins, where the hole was meant to string them together into easily manageable bundles.

h4. Related tags
* [[Donation box]]
* [[Coin on string]]
* [[Yuanbao]]
方孔钱 铜钱 穴あき硬貨 穴あき古銭 五円玉 五円硬貨 五十円玉