The American twenty-cent piece

The father of the twenty-cent piece was Nevada Senator
John P. Jones and part-owner of the Crown Point Mine. He
introduced a bill to authorize a twenty- cent piece, one of his
first legislative endeavors. His proposal cited the lack of small 
change in the West. It was endorsed by the Director of the mint
Linderman and other legislators went along with it, largely as a
favor to Sen. Jones. The bill was signed into law by President
Ulysses S. Grant on March 3, 1875. The coin was only used
for 3 years. 

John Percival Jones
(January 27, 1829 – November 12, 1912)