Introduction The 50 State Quarters program (1999–2008) sparked one of the biggest coin-collecting booms in U.S. history, with nearly every American hunting for the unique designs honoring each state. While billions were minted and most remain worth just 25 cents, certain rare state quarters—especially those with dramatic mint errors, low-mintage varieties, or pristine high-grade condition—have … Continue reading Most Valuable State Quarters in the U.S. – Rare Errors Worth Thousands