1976 U.S. Bicentennial Proof Coin Set with the 1776-1976 Patriotic designs has six Proof clad Coins in all.
- Hurray for the 1776-1976 Mint Date! Wow! The 1976 U.S. Proof Coins sets are over 35 years old, yet are still available. - The various "Proof" coins are generally one of the most desirable U.S. coinage collectables in the U.S.- The U.S. "Proof" Coinage Production Process involves: The preparation and the polishing of the coinage striking dies surfaces; The Proof Coins can be distinguished from normal circulation coins by their sharper "rims" and with designs that have a much smoother blank "fields" areas.- The dies for making modern proof coins are often treated with chemicals to make certain parts of the design appear to have a "frosted" appearance, with the polished blank area fields taking on a mirror finish.- The various item's descriptions may include the seller's personal "freedom to exercise" opinions.