Your coin is most often called a Barber Dime after its designer, Charles Barber. Look on the back to see if there's a small mint mark letter under the bow of the wreath.
Numismedia lists the following approximate retail values as of 05/2011:
No mint mark (Philadelphia):
Very worn condition - $4
Moderately worn - $8
Slightly worn - $10
Almost no wear - $70
Uncirculated - $110 to $4,750 depending on quality
"O" mint mark (New Orleans):
Very worn - $12
Moderately worn - $85
Slightly worn - $121
Almost no wear - $275
Uncirculated - $540 to $52,000
"S" mint mark (San Francisco):
Very worn - $8
Moderately worn - $29
Slightly worn - $40
Almost no wear - $175
Uncirculated - $420 to $24,700
DISCLAIMER: The retail values quoted are the best available as of the date shown, but may vary significantly due to changes in the precious metals market. Also the wholesale (buying) price of a coin will be less than the selling (retail) price. A reputable coin dealer will be able to give a more accurate valuation based on inspection of the coin.
The value of a US dime marked "ten centavos" is zero, since it is a fake. A real US dime is marked "one dime," not "ten centavos."
a 1917 us dime is called a mercury dime. its not that rare so it is worth about a dollar
Face value only.
The US discontinued its half-dime denomination in 1873.
There were no 1898 Mercury Dimes released, Mercury dimes refer to dimes struck from 1916-1945 that depict Liberty with wings on her head. Instead an 1898 dime is known as a "Barber" dime after Charles Barber who designed it. Look at the back of your coin, if your coin has no mintmark, it is just worth scrap in heavily circulated condition (about $2 or so) If it has an O or S it has modest value of about $5 in worn condition (although the value jumps dramatically in better condition, particularly with the 1898-O)
Assuming the coin has no mintmark, the value for a 1898 Barber dime is from $2.00- $8.00 for coins showing heavy wear, better coins are $10.00-$25.00 and maybe as high as $90.00 depending on grade.
Between $20 and $360, depending on condition.
what is the value for an American 1909 silver dime
The value of a US dime marked "ten centavos" is zero, since it is a fake. A real US dime is marked "one dime," not "ten centavos."
a 1917 us dime is called a mercury dime. its not that rare so it is worth about a dollar
A 1988 dime is worth 10 cents.
Face value only.
10 cents
10c
The US discontinued its half-dime denomination in 1873.
There were no 1898 Mercury Dimes released, Mercury dimes refer to dimes struck from 1916-1945 that depict Liberty with wings on her head. Instead an 1898 dime is known as a "Barber" dime after Charles Barber who designed it. Look at the back of your coin, if your coin has no mintmark, it is just worth scrap in heavily circulated condition (about $2 or so) If it has an O or S it has modest value of about $5 in worn condition (although the value jumps dramatically in better condition, particularly with the 1898-O)
The 1965 dime is a Roosevelt dime. This dime does not carry a mint mark and there were 1,652, 140,000 of them minted in the U.S. They have a value of between 10 cents and 2 dollars.