coin minted in the reign of Emperor Ling of Han 漢靈帝|汉灵帝[Han4 Ling2 Di4], with a square hole in the middle and four lines radiating out from each corner of the square (hence the name 四出文)
coin minted in the reign of Emperor Ling of Han 漢靈帝|汉灵帝[Han4 Ling2 Di4], with a square hole in the middle and four lines radiating out from each corner of the square (hence the name 四出文)
Lingaku