Assertion: coin's composition | /r/CapableOf | reflect the copper
Facets:
value: from cornish ores
type: LOCATION
value: from england
type: LOCATION
Source sentences:
text: The isotope composition of early coins spanning the period 1828 to 1843 reflects the copper from Cornish ores from England, while coins after 1850 reflect the Keweenaw Peninsula, Michigan ores, a finding consistent with historical records.