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Yes, the reason why quarters (and dimes, and half dollars) dated 1964 and earlier are worth more than their 1965 and later coins is because they are 90% silver.
The coins have an Actual Silver Weight (ASW) of .36169oz of pure silver.
25 cents, unless they are date 1964 or before, then they are 90% silver.
US quarter dollars issued through 1964 were 90% silver. Quarters issued from 1965 onward (except for some proof coins made for collectors) contain no silver.
Pre-1964 US dimes, quarters, and half-dollars contain 90% silver by weight. A dime is approximately 2.5 grams of silver, a quarter is 6.25 grams, and a half-dollar is 12.5 grams, making it easy to calculate the silver content based on the face value of the coins. For example, a $1 face value in pre-1964 coins would contain approximately 0.715 ounces (20.17 grams) of silver.
Pre-1964 quarters in the United States were made of 90% silver and 10% copper.
U.S. quarters dated 1964 or earlier contain .18084oz of silver.
Yes, the reason why quarters (and dimes, and half dollars) dated 1964 and earlier are worth more than their 1965 and later coins is because they are 90% silver.
The coins have an Actual Silver Weight (ASW) of .36169oz of pure silver.
25 cents, unless they are date 1964 or before, then they are 90% silver.
US quarter dollars issued through 1964 were 90% silver. Quarters issued from 1965 onward (except for some proof coins made for collectors) contain no silver.
Pre 1964 quarters are made of 90% silver. Sterling silver is 925%. So no. Yah that's right. But I think you missed a decimal point out! Sterling silver is 92.5% pure also denoted 925 in millesimal fineness
Pre-1964 US dimes, quarters, and half-dollars contain 90% silver by weight. A dime is approximately 2.5 grams of silver, a quarter is 6.25 grams, and a half-dollar is 12.5 grams, making it easy to calculate the silver content based on the face value of the coins. For example, a $1 face value in pre-1964 coins would contain approximately 0.715 ounces (20.17 grams) of silver.
U.S. quarters, starting from 1932, are called "Washington quarters." Washington quarters dated from 1932 to 1964 are made with 90% silver and 10% copper, and weigh 6.25 grams. The value of the metals depends on the market price of silver and copper. As of October 5, 2007, the value of the silver in a pre-1964 Washington quarter is $2.41 (market price of silver $13.39 per ounce) and the value of the copper in a pre-1964 Washington quarter is about a half of a cent, giving the total value of a pre-1964 Washington quarter about $2.42. If the coin is rare, and/or is in mint like condition, it could be worth significantly more. None of the 1944 Washington quarters (Philadelphia, San Francisco, and Denver mints) are rare, but if the coin is in mint state, it would be worth about $35.
They aren't rare, they are, however 90% silver and worth a bit over $5 each at the time of writing in silver content alone. Many, many, many, pre-1965 quarters were made but simply the fact they were made out of silver is what makes them valuable. Now, there are, of course, some rare years of silver quarters, but there are also very common dates (like 1964).
Pre-1965 silver quarters are 90% silver with a total weight of 6.25 grams, which is then 5.625 grams of silver per quarter.
16% of a pre-1965 silver quarter equals one gram. 17.64% of the copper-nickel quarters minted after 1964 equals one gram.