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