All circulating quarters dated 1965 and later don't contain any silver. They're made of copper-nickel.
The only modern quarters that contain silver are special "prestige" coins minted and sold to collectors in Proof sets.
$50
If you mean a 1966 American quarter, then none.
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.
The Actual Silver Weight (ASW) is .18084oz of pure silver.
A 90% US silver quarter contains .18084oz of pure silver, or 5.12672 grams. All quaters before 1965 had this 90% composition.
It's likely to be valued just for the silver, about $5.00. If I understand this question, someone signed 1999 silver proof quarter?
The 1964 Washington Quarter has .18084oz of pure silver.
No "quarter silver dollars" have been made by the U.S. Mint. Please post new question. Is it a quarter or a silver dollar?
It is 90% silver and 10% copper.
$3.00
$50
If you mean a 1966 American quarter, then none.
Currently none.
$10
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.
The Actual Silver Weight (ASW) is .18084oz of pure silver.
The actual amount of pure silver is .18084 of an ounce.