 The 1804 dollar was a dollar coin struck by the Mint of the United States , of which fifteen specimens are currently known to exist . Though dated 1804 , none were struck in that year ; all were minted in the 1830s or later . They were first created for use in special proof coin sets used as diplomatic gifts during Edmund Roberts ' trips to Siam and Muscat . Some silver dollars were struck in 1804 , though all were dated 1803 . In 1806 , production was suspended by order of James Madison , then Secretary of State , and the denomination was not struck again until the 1804 @-@ dated pieces were minted . 
