In 1972 the Mint issued copper nickel circulation strike coins which were struck at Philadelphia and Denver only. It also produced 40% silver Proof coins struck at San Francisco. Finally, it also struck 40% silver Uncirculated coins struck at San Francisco which carry an S mint mark but these coins weren't meant for circulation.

Instead the 40% Silver Uncirculated Eisenhower Dollars were only sold to collectors. These Uncirculated coins were sold in single packs, sometimes referred to as Blue Packs which is the nomenclature used to describe the outside packaging in which these 40% Silver Uncirculated coins were sold in.