The US didn't mint any $1 coins from 1936 to 1970 inclusive. If your coin says "half dollar" on the back it's a 50¢ piece.
Canada did continue minting silver dollars until the 1960s.
Depending on what you have there's more information at the Related Questions.
A 1945 quarter had a minimum value of $4.80 because of the silver content. If it is in excellent condition it's worth about $7.00. If it has a mint mark that is an D or S it is valued up to $10.00
A 1947 Quarter is worth $200.00!
Please take a look at your pocket change. You'll find quarters with that date and earlier, going back to 1965, so what you have is an ordinary circulation coin worth 25 cents.
Assuming the coin is circulated, the 1947-D Washington quarter is a high mintage common date coin, so if the coin has any wear the value is for the silver about $5.00.
See the Related Question for values
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The coin has an average retail value of $1.25 to $2.00 depending on the actual grade.
If it is still a quarter in 2020 it would be worth a quarter of a dollar.
The 1970 Washington quarter was NOT struck in silver.
A quarter is worth 25 cents or $0.25.
A quarter is worth 25 cents.
How can I fine out how much my quarter is worth??
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It is just a quarter.