As of May 24 2011 the melt value of a 1964 quarter is $6.47. This price will change as the price of silver and copper changes. This answer is based upon silver at a spot price of %35.77 per oz and copper at $4 per pound.
The silver melt value of the dimes are about $2 each and the quarter melt value is about $5.45 so the scrap melt value would be about $11.45.
The melt value for a 1964 nickel is the same as any other date of nickels (except 1942-45), because unlike the dime and quarter, nickels weren't silver, and there was no change to it in 1965. As of 19 August 2013, U.S. nickels have a melt value of 4.6 cents.
The last year before 1964 that silver dollars were minted was 1935, and they were 90% silver. The melt value at present is about $24.
Face value of $200 is 800 quarters. As of 16 September, one U.S. silver quarter is worth $3.371 in melt value. Multiply that by 800, and you get $2,696.80.
Is not a valuable pre 1965 silver quarter. It's worth keeping though as it has a melt value of a around $5.
The current melt value of a 1964 Washington quarter is about $5.50 (as of 11 January 2013).
As of 22 January 2014, the melt value of a U.S. silver quarter (dated before 1965) is $3.58.
90%. They have a melt value of around $6. The last year they made them was 1964.
The silver melt value of the dimes are about $2 each and the quarter melt value is about $5.45 so the scrap melt value would be about $11.45.
The melt value for a 1964 nickel is the same as any other date of nickels (except 1942-45), because unlike the dime and quarter, nickels weren't silver, and there was no change to it in 1965. As of 19 August 2013, U.S. nickels have a melt value of 4.6 cents.
The silver melt value would be around $2.60.
The last year before 1964 that silver dollars were minted was 1935, and they were 90% silver. The melt value at present is about $24.
It's not pure silver. All circulation-strike US silver coins dated 1964 and earlier contain 10% copper. If in circulated condition, melt value only - about 0.18 times the current price of silver.
Face value of $200 is 800 quarters. As of 16 September, one U.S. silver quarter is worth $3.371 in melt value. Multiply that by 800, and you get $2,696.80.
Silver prices have been dipping over the last few weeks, so the current melt value of a US silver quarter (minted before 1965) is a little under $6.
Going by melt value alone, one is currently worth about $6.
Unless the quarter is in mint-state or a proof, the value would be the melt value of the silver in the coin which is $3.80ish as of this time of writing, but changes depending on the spot price of silver.