William Kneass (/ˈniːs/ niece) (September 25, 1781 – August 27, 1840) was the second Chief Engraver of the United States Mint from 1824 until his death in 1840. He designed the Classic Head motif which appeared on Quarter Eagle ($2.50) and Half Eagle ($5.00) gold pieces from 1834-1839. He also modified John Reich's Capped Bust design on the dime through half-dollar for the years 1829-1837. Additionally, Kneass utilized his modified Capped Bust for the rebirth of the half-dime in 1829.
Read more about William Kneass: Early Life and Career, Chief Engraver of The U.S. Mint, Personal Life and Legacy