The rare bicentennial quarter is made of a copper-nickel clad material, which consists of outer layers of copper-nickel bonded to a core of pure copper. This composition gives the coin its ...

copper and zinc that are layered together like a sandwich, according to the U.S. Mint. But as Chronicle Collectibles noted, some of the bicentennial quarters were composed of 40% silver — an ...

But that’s not the only bicentennial quarter that fetches a big price. Plenty of others have as well. Most of these coins were “clad,” meaning they were made of multiple metals such as nickel, copper ...