CNG Coins via Wikipedia, CC-BY-SA-3.0. Unlike kings, there have been only very few queens throughout world history who have ruled as sovereigns and also issued their very own currency. This has been ...
"These are exceptionally rare coins and the possibility to ... is done by among other things comparing a coin with other ancient coins and by examining the gold used.
The aureus, the gold coin currency used in ancient Rome, was issued by Brutus and his friends a year or two after they assassinated Roman ruler Caesar in 44 BC, he said. Rare Roman gold coin ...