![Neat "Liang" cash, Wudi (140-87 BC), Western Han, China (G/F 13.252)](http://www.numismall.com/cdn/shop/products/w50028_fbfe94e7-0231-417e-aecd-76cbd2ce14d3_{width}x.jpg?v=1669671890)
One Chinese character Liang ("ounce") left, outer rim / Flat, no rims. 24.5mm, 2.02 grams. Gratzer/Fishman "The Early Round Coins of China" #13.252; Hartill #-. SKU T1913-50020
Unusual piece with a single character, product of poor casting but still very interesting.
A Chinese ounce (liang) weighs about 16 grams. The earliest "Ban Liangs" weighed half that much - 8 grams, but the later pieces, like this one, weighed much less. These late Ban Liangs were cast during the reign of Emperor Wudi (140-87 BC), the date of the casting is ca.136-118 BC and they come from the last issue of Western Han dynasty Ban Liangs.
This coin is unconditionally guaranteed to be authentic