1974 United States Proof Set, 5 Coins Inside!!. 1974-S Proof Sets are popular because every coin in the set, except for the Cent, was a Proof-only issue. Sales of Proof Sets continued to be strong, but were slightly lower than in the previous year.Each set contained six coins: One example each of the Lincoln Cent, Jefferson Nickel, Roosevelt Dime, Quarter, Kennedy Half Dollar, and Eisenhower Dollar (Copper-Nickel Clad).About the sets: 1974-S Proof Coins are found with Brilliant, Cameo, and Deep Cameo surfaces. All three finishes are readily available.Mintage: 2,612,568 setsThe Proof 40% Silver Clad version of the 1974-S Eisenhower Dollar was NOT included in the 1974-S Proof Set, but was sold separately in a special case and presentation box.Original packaging: The individual coins of the 1974-S Proof Set were sealed in a two-piece, clear plastic case. Raised rings of plastic separated the coins from each other, and a red, felt-covered paper insert was added for visual impact. The clear plastic case containing the coins was inserted into a molded, black plastic frame with the raised silver letters "UNITED STATES PROOF SET", and a hinged flap that could be flipped over for display purposes. A black card cover imprinted with silver letters, "United States Proof Set • 1974" protected both the case and the frame.