2000 year old gold coins are usually common?
(sorry, couldn’t resist)
I knew a German priest who had a desk drawer full of gold and silver Roman coins that had been dug up between 1945 and 1975 on the grounds of a formerly disused church in a part of Germany that had been part of the Roman Empire. Roman soldiers would bury coins, and if they died the coins would remain buried for centuries. Roman coins were used in trade as far east as Siberia in ancient times. There must be millions of Roman coins in the possession of collectors.
I’ve found two ~1200 year old Chinese coins recently in Tokyo, and they only go for about a buck on the worldwide open market. They are steel, and not that pretty, and were made in the 10’s of millions, but damn, if they aren’t exciting to dig up and throw in the “treasure box” for the family.