What is a coin that is bronze and has the Louisiana purchase on the back and Jefferson on the front and is a bout the size of a half dollar worth it looks really old and says 1803 on the back?
Sounds like you have a 1903 commemorative medal.
8-5-11>>> For regular issue coins made by the US Mint it was Lincoln in 1909 on the cent. But Jefferson was depicted on the 1903 Louisiana Purchase Exposition gold commemorative one dollar coins. Also tokens, cents and half-cents of English origin bearing a very good likeness of Washington are dated 1783-1795.
Thomas Jefferson was the 3rd US President and his likeness has appeared on the Jefferson nickel since 1938. Thomas Jefferson also appears on the 2007 Thomas Jefferson Dollar coin in the Presidential Series. Thomas Jefferson also appears on the 1976 Thomas Jefferson Bicentennial Silver Medal. Thomas Jefferson also appears on the 1993 Thomas Jefferson 250th Anniversary Silver Dollar. Thomas Jefferson has also appeared on the US $2 bill since 1918.
You may find any of the following coins in circulation in the US today; Lincoln Cent, Jefferson Nickel, Roosevelt Dime, Washington Quarter, Kennedy Half Dollar, Susan B. Anthony Dollar, Sacagawea Dollar, George Washington Dollar, Thomas Jefferson Dollar, John Adams Dollar, James Madison Dollar, James Monroe Dollar, John Q. Adams Dollar, Andrew Jackson Dollar, Martin Van Buren Dollar, William Henry Harrison Dollar, John Tyler Dollar.