About 80 cents to $1 for the silver it contains.
It doesn't have a P below the date for 3 reasons:
1. Philadelphia only started to use the P mint mark on dimes in 1980.
2. Dimes minted in 1964 and earlier had the mint mark on the back, not the front.
3. The mint mark on dimes dated 1968 and later is above the date, not below.
The value of a 1964 dime is approximately $3.00. Unfortunately the date on the coin does not matter as much as the amount of silver in the coin.
2.5 grams
It's worth about $2.
90%, or 2.25 grams.
About 80 cents just for the silverMoreIts date has to be 1964 or earlier. But ALL dimes have the motto E Pluribus Unum so please post a new question with the coin's date.
It's 90% silver and 10% copper with a total weight of 2.5 grams, which makes 2.25 grams of silver.
10 cents, unless it's a proof.
It deprnds on the date and condition of the coin
That would be an impossible coin for two reasons:1. Franklin Roosevelt's picture has been on all dimes minted since 19462. President Eisenhower was very much alive in 1964 so his portrait could not appear on a circulating coin.If you have a Roosevelt dime with that date, as of 02/2009 it's worth about 90¢ for the silver it contains.
There is no such thing as a pure silver dime. See the related question below for more information.
The first US dime was made in 1796 so look at the date again and post new question
U.S. silver coins dated 1964 and earlier are almost all composed of 90% silver and 10% copper.