No "S" mintmarks on a 1961 quarter, only a "D". The coin is valued for the silver, about $5.00.
Yes. All U.S. quarters that year were silver.
The 1961 Washington quarter is so common if it has any wear at all the value is just for the silver about $3.00.
1961 is not a rare date for Washington quarters. If it has any wear, the value is about $5.00 just for the silver.
any quarter prior to 1961 is currently worth at least 2 dollars in silver content
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.
8-4-11>> The value today is about $7.00.
The date is so common most are only valued for the silver, about $6.00.
The 1961 Washington quarter is not rare, it's very common, most are only valued for the silver about $5.00.
The value depends on the silver price, today it is worth around $4.94, but will change as silver prices change.
There's no such coin as a Jefferson quarter. Jefferson is on the nickel. If you have a quarter the portrait shows George Washington and the coin is worth about 0.18 times the current price of silver. If you have a nickel it's only worth 5 cents. It isn't a key date and it isn't made out of any precious metals.
The value of a 1964 quarter depends on the current price of Silver. As of 2014, the value is approximately $4.00 to $6.00.