The US never made pure silver dimes. Silver by itself is too soft for use in circulating coins. Dimes dated 1964 and earlier are made of a .900 fine alloy of silver and copper.
If it has any wear at all, the value is just for the silver about $1.80.
A 1927 Mercury Head dime in average condition is $3.00-$5.00.
In poor condition, the only value is in its silver content. At current prices, it's worth about $2.50.
what is the value for an American 1909 silver dime
No, it is 90% silver and 10% copper. Pure silver is too soft to use for circulated coinage.
If it has any wear at all the value is for the silver only about $1.00. A uncirculated 1942 dime is about $2.50
Nothing. There is no such thing. The most silver any dime has is 90%. This is most likely what you have.
The last US Half Dime was issued in 1873 so if you mean a 1927 Buffalo nickel? Average value is $1.00-$3.00 for most coins. Post a new question.
A 1951 Roosevelt dime is very common, most are only valued for the silver in them, about $1.35.
With silver at $41.39 per ounce, as of 9-10-11 a 90% silver dime has a Melt Value of $3.99.
1902 and 1907 silver dimes
The 1914 Barber dime is a common coin. Value is $4.00-$8.00 for most coins.