The 1970 Washington quarter was NOT struck in silver.
A 1970 US quarter has no silver, so it has no silver value.
The coin you have is a just a gold plated 1977 Washington quarter that's only worth a 25 cents unless you find someone that wants it.
This quarter is not made of any silver so a 1970 quarter is only worth 25 centsIt's a common coin, still in circulation, has no silver and is just face value.
$3.00
$10
it is worth about 50 dollars
Face value only since no silver content.
Around $6.
1964 was the last year for silver quarters.
The value is only for the silver about $3.25
It's worth around $5.50 for its silver content.
about 134 dollars
$3.00 just for the silver.
The silver melt value would be around $2.60.