In the field of numismatics, double-denomination coins are among the most sought-after rarities. This minting error happens when two denominations are inadvertently struck on the same coin, as the name suggests.
Some of the rarest and most costly coins from the 1990s are the 1992 Close AM and 1992-D Close AM (the "D" stands for Denver).
The PCGS claims that in 1992, the U.S. Mint made minor design changes to the cent to allow for a higher-quality strike. While not all of them were released in 1993, the majority were.
In 1986, the U.S. Mint introduced the American Eagle Coin program, which included a collector's edition proof. Since then, the $1 silver proof has gained notoriety, and 1995 is the most sought-after year of all
which lists it at number 13 on its list of the top 100 modern coins. This is due to the fact that only 30,125 were ever manufactured, making it the first year to have the "W" mint mark, which denotes that it was produced in the West Point Mint.
To mark the 50th anniversary of Jackie Robinson's 1947 signing with the Brooklyn Dodgers, the U.S. Mint granted the West Point Mint (W) permission to create up to 100,000 gold half eagles in 1997.