Mistakenly struck on copper instead of steel. If you find one, it's worth hundreds of thousands of dollars.
Features noticeable doubling in "LIBERTY" and "IN GOD WE TRUST." It can be worth several thousand dollars, especially in high grades.
Known for doubling on the obverse, particularly in "LIBERTY" and "IN GOD WE TRUST." This error coin can be worth thousands.
Another penny with a significant doubling error. High-quality examples can be worth several hundred dollars.
Some quarters from this series have an extra leaf on the corn stalk. These are valuable, with prices reaching into the hundreds.
Coins from Philadelphia should have a "P" mint mark, but some 1983 pennies lack it. They are rare and can be worth several hundred dollars.
Known for a rare mint error where the "S" mint mark is missing from some proof dimes. These can be worth several thousand dollars.