The 1977-S United States Mint proof set contains 6 coins, all 6 coins bear the San Francisco “S” mint mark.
Each set contained six coins: One example each of the Lincoln Cent, Jefferson Nickel, Roosevelt Dime, Bicentennial Washington Quarter (Copper-Nickel Clad), Bicentennial Kennedy Half Dollar (Copper-Nickel Clad), and Bicentennial Eisenhower Dollar (Copper-Nickel Clad).
Original packaging: The individual coins of the 1977-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 • 1977" protected both the case and the frame.