9 Rarest US Currency Ever Released 

9. 1880 $1,000 Legal Tender Note

8. 1863 $1000 Legal Tender Note

7. 1880 $1000 Silver Certificate of Deposit

6. 1861 $50 Interest Bearing Note

5. 1885 Trade Dollar

4. 1869 $500 Legal Tender Note

3. 1891 $1000 Silver Certificate

2. 1913 Liberty Head Nickel

1. 1890 $1000 Treasury Note

10 Most Valuable Pennies Still in Circulation