there is hundred types of gold!
Aster gold
like silver, gold and ...ye.
Jonathans Gold
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Some other kinds of objects used as currency is salt,furs,grains,and gold.
you may find gold mining or coal mining in eastern kentucky
they believed they could change metal into gold
Bronze nickel iron steel and gold
As far as I know Spanish gold has been the most expensive. Perhaps not the rarest but the most expensive
phoenix gold speakers
Three kinds: Gold, silver and bronze
Gold Green Red Orange is most popular once.