FREE: 2000-S U S Mint Clad Proof set of 10 coins OGP w/COA

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Good question! Definition: A clad coin is one that has multiple layers of metal in it;
most current U.S. clad coins consist of an inner core of copper,
with outer layers of a silver-colored nickel-copper alloy.
Examples of this type of clad coin are the U.S. Dime, Quarter, and Half Dollar.

Definition:The golden dollar coins, including the Sacagawea Dollar and the Presidential Dollars,
are also clad. They have a copper core with clad layers made from a zinc, manganese,
and nickel combination.
Examples:
On most U.S. clad coins, if you look at the edge of the coin, you can see the
copper core sandwiched between the outer layers of metal


Definition: A proof coin is a coin struck using a special, high-quality minting process,
and made especially for collectors. Modern proof coins often have mirror-like fields
and frosted devices, although proof coins struck prior to the mid twentieth century
are often distinguished only by their high quality surfaces. In all cases,
the term proof always refers to a type of coin, or the way it was struck,
and not to a coin's grade.

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