Please rephrase question.
if you mean
"How much did the first US dollar coin cost?"
the answer is
exactly a Dollar!
The first US dollar coin was made in 1794.
The first US Dollar coin was minted in 1794.
The first US Dollar coin was struck in 1794
George Washington
The first US silver dollar coin was struck in 1794 the designer was Robert Scot. Lady Liberty is not a real person.
The first year a US $5 dollar coin was struck is 1795
The first US One Dollar Gold coin was the Liberty Head Type designed by James B. Longacre and minted in 1849.
The first US half dollars were minted in 1794.
George Washington
The first Morgan dollar was coined in 1878, a US dollar coin dated 1797 is a Draped Bust dollar. If you actually have a dollar coin dated 1797, take it to a coin dealer for an accurate assessment.
The first 1,758 US silver dollars were minted in Philadelphia in 1794.
No US coin is known as just a "LIBERTY" coin and ALL US half dollars have the word liberty on them. The first US half dollar was made in 1794.