Most of the 1.6 billion 1976 Bicentennial quarters are worth exactly 25 cents — but a handful of dramatic mint mistakes have turned everyday change into serious money. The king of them all? The ultra-rare 1976 Bicentennial Quarter struck on a 40% silver planchet (also called the “Silver Clad Error”). While regular business-strike Bicentennial quarters were made of copper-nickel clad, a tiny number accidentally got punched from leftover 40% silver planchets meant for special collector proof and uncirculated sets. In … Continue reading Rare 1976 Bicentennial Quarter Error That Could Be Worth Thousands