Known as "The King of U.S. Coins," the 1804 dollar is extremely rare, with only 15 known examples. No U.S. dollars dated 1804 actually were struck in that year; Class I specimens were struck in 1834-5 as diplomatic gifts (8 known), while Class II (unique) and III specimens (6 known) were struck during the 1850s for collectors.
The Idler/Bebee specimen was donated to the ANA by Aubrey and Adeline Bebee in 1991.
Listen to the Money Talks podcast: Kenneth E. Bressett, who co-authored "The Fantastic 1804 Dollar" with Eric Newman, discusses the lore, origins and history behind the 1804 Dollar.