The Proof State Quarters represent a significant period in American numismatics. Struck in 90% silver, these quarters commemorate various U.S. states and are prized for their collectible and silver ...

eliminated 90% silver coins from circulation, according to a blog from ModernCointMart. That law mainly affected U.S. dimes and quarters. Half-dollar coins were still made with 40% silver from ...

Silver coins are highly prized by dealers and collectors -- not just because of their silver content, but also because they tend to be scarcer than coins minted with copper, nickel, zinc and ...

U.S. quarters were made of 90% silver, Wired reported. This means a quarter’s silver content alone could be worth several dollars. Because each old quarter weighs 6.25 grams, then one of them ...