Assertion: pūl coin | /r/HasProperty | around 98% copper
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: earlier the pūl-system was continued but some of the old Dzungar pūl coins were melted down to make Qianlong Tongbao (乾隆通寶) cash coins, as pūl coins were usually around 98% copper they tended to be very red in colour which gave the cash coins based on the pūl coins the nickname "red cash coins".