10 Most Expensive Quarters Worth Keeping an Eye On 

10. 1828 25C (Proof) 

9. 1827/3 25C Restrike (Proof) 

8. 1827/3 25C Original (Proof) 

7. 1824/2 25C (Proof) 

6. 1865 25C (Proof) 

5. 1864 25C (Proof) 

4. 1863 25C (Proof) 

3. 1852 25C (Regular Strike) 

2. 1851-O 25C (Regular Strike) 

1. 1851 25C (Regular Strike)