All others are extremely scarce, with only 25 to 50 known examples for each entire coin series. One 1990 example from the more common, but still rare, 11c pairing is being auctioned on eBay for ...

Over time, coins can become rare collectibles that are sold for thousands, if not millions, of dollars in the present day. That’s because the United States has been minting coins since 1793.

"This represents a huge amount of personal wealth for the individual or group of individuals who ... been found as part of the hoard—are rare. Coins Found in Ruins of Roman Fort The solidi ...