Assertion: coin | /r/MadeOf | electrum
Facets:
value: with a standardized 55% gold
type: OTHER
value: with 45 silver
type: OTHER
Source sentences:
text: The coins of Lydia were made of electrum, which is a naturally occurring alloy of gold and silver, that was available within the territory of Lydia.
text: These first coins were made of electrum, a naturally occurring pale yellow mixture of gold and silver that was further alloyed with silver and copper.
text: These first coins were made of electrum, a naturally occurring pale yellow mixture of gold and silver that was further alloyed with silver and copper.
text: The earliest coins were made of electrum with a standardized 55% gold, 45 silver and 1-2% copper concentration and had either no design or a some apparently random surface striations on one side and a punch impression on the other.