These are coins that have mistakes or are unique, and there are collectors who buy them at a good price.

Old coins that you think are worthless could save you: there are collectors who pay millions of dollars for them. According to experts, the most appreciated are those that have errors or rarities when they were minted, but there are ten that are the most sought after in the market.
Look at the old coin purse and see if you have any of these:
Barber Dime
The Barber coinage consisted of dime, quarters and half-dollars. These coins were designed by United States Mint chief engraver Charles Barber and the dimes were minted from 1892 to 1916. Barber dimes are composed of 90 percent silver and 10 percent copper. In 2016, one was auctioned for $2 million dollars. Only 24 specimens of these coins were minted, and currently, there are 9.
Double Die Obverse Lincoln Memorial
During the minting of this coin, the date “1972” and the letters “Liberty” were duplicated, making this small detail in approximately 20,000 pennies currently traded in the market for over $325 dollars.
Double Die Lincoln Penny
The 1955 doubled die Lincoln penny is one of the most famous error coins produced by the United States Mint. The doubling on the obverse is dramatic and can be seen without magnification. It is most prevalent on the date, the motto “LIBERTY” and “IN GOD WE TRUST.” The coin’s reverse was made correctly and does not exhibit any doubling.
Double Eagle Saint-Gaudens
The Saint-Gaudens double eagle is a twenty-dollar gold coin, or double eagle, produced by the United States Mint from 1907 to 1933. In 2021, one of these coins was sold for $3 million dollars.
Liberty Head Nickel

It is believed that only five coins of this type exist, and one of them was auctioned in 2018 for almost $4 million dollars. It was designed by Charles E. Barber, and the rare versions do not have the word “cents” because officials at the United States Mint did not add it.
Lincoln Wheat Penny
In 2012, one of these coins was sold for $1 million dollars. Its value lies in the history behind the minting process; it is believed that these coins were accidentally produced with metal discs between 1942 and 1943.
Sacagawea Cheerios Dollar
During the year 2000, in 10 million Cheerios boxes, a 2000 Lincoln penny was packaged as part of the U.S. Mint’s promotion for the new golden dollar featuring Sacagawea’s face, which can currently cost between $5,500 to $25,000 dollars.
Flowing Hair Dollar
In an auction held in 2021, one of these coins was sold for $2,500 dollars. It is believed that the Flowing Hair dollar was one of the first silver coins issued by the United States government. Although there are several versions, the 1795 one is considered one of the most valuable.
Morgan Silver Dollar
The value of this coin depends on its condition. Minted between 1878-1904 and again in 1921, these Morgan silver dollars have been sold for up to $1,805 dollars, and uncirculated ones reach $300 dollars.
Wisconsin Quarter
The erroneous version of this coin, which makes it worth more than its face value, has an additional leaf on the left side of the corn that touches the cheese wheel. According to the known history of the minting process of this coin, the error was deliberately made by someone who tampered with the die. In 2021, one was sold for $152 dollars.”