Uncirculated Eisenhower dollars are commonly referred to as “blue pack” Eisenhower dollars while proof specimens usually go by the moniker “brown pack.” What’s up with those color-coded designations? The U.S. These silver Eisenhower dollars were all made at the San Francisco mint and were offered in both proof and uncirculated varieties. Treasury, the United States Mint struck around 4 million Eisenhower dollars with a 40 percent silver metal content. Most 1972 Eisenhower dollars were struck with a copper-nickel clad metallic base, as most large-denomination U.S.