But in Hong Kong, which was under the British rule as of 1929, the weight of 1 kin and 16 ryo are equally 600 grams even today, in other words, the weight of 1 ryo is set at 37.5 grams.
1929年当時イギリス領だった香港では現在も1斤16両600グラム、1両37.5グラムである。