Trying to figure out if this is the actual one that some of the website talks about. sorry for bad pictures, really need a new camera.
@Write2bfree There are 6 regular proof sets that include a "No S" coin: 1968S - No S 10c 1970S - No S 10c 1971S - No S 5c 1975S - No S 10c 1983S - No S 10c 1990S - No S 1c Chris