Your quick guide to mint marks and rare coins.
MintScope answers your questions about mint marks, error coins, and rare varieties in plain English. Get fast, accurate explanations so you can identify and understand your coins.
Mint Marks
Error Coins
Rare Varieties
- What is a coin variety?
- How do I identify a rare coin variety?
- Why are some coin varieties more valuable?
- What is the difference between a variety and an error?
- Can a coin have both a variety and an error?
- How do I know if my coin is a rare variety?
- What are Canadian coin varieties?
- What are dollar coin varieties?
Coin Values
Grading & Condition
- What is coin grading?
- How can I grade my own coins?
- Why does condition matter for coin value?
- What does MS mean in coin grading?
- Can I improve a coin's grade by cleaning it?
- How do I store coins to keep their condition?
- What does it cost to have a coin professionally graded?
- Why does my silver coin turn dark?
