There are 3 possible varieties. Numismedia lists the following approximate retail values as of 08/2011:
No mint mark (Philadelphia), small stars:
Very worn condition - $21
Moderately worn - $49
Slightly worn - $106
Almost no wear - $392
Uncirculated - $620 to $24,380 depending on quality
No mint mark (Philadelphia), large stars:
Very worn - $15
Moderately worn - $28
Slightly worn - $46
Almost no wear - $217
Uncirculated - $330 to $20,630
"O" mint mark (New Orleans):
Very worn - $48
Moderately worn - $201
Slightly worn - $500
Almost no wear - $1,422
Uncirculated - $2,840 to $23,730
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.
Look on the back of the coin to see if there's a small mint mark letter. There may be an O or it may be blank.
Numismedia lists the following approximate retail values as of 03/2013:
No mint mark (Philadelphia), small stars
Very worn - $21
Moderately worn - $49
Slightly worn - $106
Almost no wear - $392
Uncirculated - $620 to $14,060
No mint mark, large stars
Very worn - $15
Moderately worn - $28
Slightly worn - $38
Almost no wear - $211
Uncirculated - $330 to $20,630
"O" mint mark (New Orleans):
Very worn condition - $48
Moderately worn - $196
Slightly worn - $500
Almost no wear - $1,414
Uncirculated - $2,840 to $23,730 depending on quality
DISCLAIMER: The values quoted are the best available, but may be significantly lower due to varying demand for the coin and the prevailing economic climate. A reputable coin dealer will be able to give a more accurate valuation based on inspection of the coin.
Check that coin again. There have been Indian head pennies (1859-1909) and nickels (1913-1938), but never on a dime, nor in 1838.
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.
Check that coin again. There have been Indian head pennies (1859-1909) and nickels (1913-1938), but never on a dime, nor in 1838.
$22 to $60,000 depending upon the mint mark and the condition of the coin.
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.
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.
A US dime dated 1944 is a Mercury head dime, it's very common with a value of $2.00 just for the silver.