The 1958 Washington quarter is made of 90% silver and 10% copper. This quarter coin has a reeded edge. The diameter is 24.30 mm, the weight is 6.30 grams, and the face value is $0.25. The US Mint ...
The US quarter contains only around 3¢ of copper and less than $0.005 of nickel – barely worth the energy it would cost to count it, let alone melt it down. The Canadian quarter, with its steel base, ...