The U.S. Presidential dollar series: Failure or success?
Presidential history: Making cents of presidential likenesses on money – Daily Press
Presidential Dollar Coin Serie - Collection of Coins - World - United States
Presidential dollar edge errors collection at auction
How much is my 1861 Abraham $1 gold coin worth? - Quora
US One Dollar Coin President series James Madison Taylor Abraham Lincoln
Ulysses S. Grant Presidential Dollar
James Madison - 2007 One Dollar, Denver Mint - Coins - World - United States
Presidential Dollar Values and Prices