1: Common Mistakes Avoid these costly errors in coin collecting.

2: Improper Storage Improper storage can lead to damage and depreciation.

3: Overcleaning Coins Cleaning can actually decrease the value of coins.

4: Ignoring Condition Proper evaluation of condition is crucial for coin value.

5: Buying Without Research Research is key to avoiding overpaying for coins.

6: Mishandling Rare Coins Improper handling can lead to scratches and wear.

7: Not Seeking Professional Advice Consulting experts can prevent costly mistakes.

8: Skipping Authentication Authentication is crucial to ensure coin authenticity.

9: Lack of Patience Hasty decisions in coin collecting can lead to financial loss.