National Numismatic Collection - Introduction

The National Numismatic Collection (NNC) of the Smithsonian Institution is one of the largest numismatic collections in the world and the largest in North America. With over 1.6 millioin objects, the NNC contains many great rarities in coins and currency, from the earliest coins created 2,700 years ago up to the latest innovations in electronic monetary exchange, as well as fascinating objects such as beads, wampum, dentalia, and other commodities once used as money.
The collection emphasizes the development of money and medals in the United States. The core of the U.S. collection, consisting of more than 18,000 items, including coins of great rarity, came to the Smithsonian in 1923 from the United States Mint. Exceptional rarities include the Brasher half doubloon, the 1849 double eagle (first of the gold 20 dollar pieces), and two 1877 fifty dollar patterns. Other rarities are include the 1913 Liberty head nickel as well as all three types of the 1804 dollar, and two of three known examples of the world's most valuable coin, the 1933 double eagle, the third of which recently sold for 7.6 million dollars. Learn more about the collection.
Below you will find a selection of over 350 objects from the collection. We are working to expand and improve online access to additional objects in the near future, so stay tuned.
"National Numismatic Collection - Introduction" showing 3 items.
United States, Two and a Half Dollars, Proof, 1856
- Description
- United States Mint, Philadelphia. Obverse: Liberty with feather headdress, facing left. Reverse: Denomination and date within cereal wreath. Numismatist Walter Breen listed two proofs of this coin for this year. Apparently, he missed this one.
- Location
- Currently not on view
- Date made
- 1856
- mint
- U.S. Mint, Philadelphia
- ID Number
- NU*283645.0325
- accession number
- 283645
- catalog number
- 68.159.0078
- Data Source
- National Museum of American History, Kenneth E. Behring Center
United States, One Dollar, 1856
- Description
- United States Mint, Philadelphia. Obverse: Liberty with feather headdress, facing left. Reverse: Denomination and date within cereal wreath. James B. Longacre's second attempt at designing a gold dollar proved unsatisfactory. His concept had featured a head in fairly high relief, and it soon became apparent that the design did not wear well, and that high relief on one side meant an indistinct strike on the other.
- So the Longacre went back to the drawing board and came up with yet a third design, copying the new head from the one he had placed on the three dollar piece two years before. This design wore much better. It was retained for the remaining years of production of gold dollars until 1889. Fewer than ten proof gold dollars are known for 1856.
- Location
- Currently not on view
- Date made
- 1856
- mint
- U.S. Mint, Philadelphia
- ID Number
- NU*283645.0320
- accession number
- 283645
- catalog number
- 68.159.0439
- Data Source
- National Museum of American History, Kenneth E. Behring Center
United States, Three Dollars, Proof, 1857
- Description
- United States Mint, Philadelphia. Obverse: Liberty with feather headdress, facing left. Reverse: Denomination and date within cereal wreath. Including this one, five proof $3 pieces are currently known for 1857.
- Location
- Currently not on view
- Date made
- 1857
- mint
- U.S. Mint, Philadelphia
- ID Number
- 1985.0441.0537
- catalog number
- 1985.0441.0537
- accession number
- 1985.0441
- Data Source
- National Museum of American History, Kenneth E. Behring Center

