These nine sets are known as the Black Box Proof Sets. These are the first US proof sets to include a sixth coin, the dollar! 1973 to 1978, the mint included the Eisenhower Dollar, and from 1979 to 1981, it debuted the Susan B. Anthony Dollar. The value in each set is the special proof dollar. The individual dollars alone sell for over $160 nationally - we have the complete set for less!