John R. (Ray) Sinnock (1888 - 1947) was the eighth Chief Engraver of the United States Mint and designer of the Roosevelt dime and Franklin half dollar, among other U.S. coins. His initials "JS" on the dime can be found at the base of the Roosevelt bust. He also sculpted, although did not design, the Purple Heart medal, and various other medals and commemorative coins.
Sinnock was born July 8, 1888 in Raton, New Mexico and was educated at the Philadelphia Museum School of Industrial Art. He won the A.W. Mifflin Award for study abroad. Sinnok was well traveled. His long time confidant was Margaret Campbell who inherited much of his artwork as well as his personal collection of materials related to the development of the Roosevelt Dime.
For ten years Sinnock was an art instructor at both his alma mater and at Western Reserve University. He was appointed Assistant Chief Engraver in 1923.
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| Preceded by George T. Morgan |
Chief Engraver of the U.S. Mint 1925 - 1947 |
Succeeded by Gilroy Roberts |
File:Money-stub.jpg  |
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