The 1960 Proof Set (Buy on eBay) made up the ground lost for the prior two years and set a new mintage high for the annual set. A total of…

After slipping below the one million mintage milestone in the prior year, the 1959 Proof Set (Buy on eBay) saw the interest in the offering rebound to reach 1,149,291. This…

The 1958 Proof Set (Buy on eBay) experienced a decline in sales when compared to the prior year. The total number of sets sold was 875,652, representing a drop of…

Demand for the United States Mint's annual Proof coinage offering reached a temporary peak with the 1957 Proof Set (Buy on eBay). Sales increased by more than 86% above the…

All of the 1956 Proof Sets (Buy on eBay) were originally issued in the new "flat packs." This simplified style of packaging had been introduced in the middle of the…