Look on the back of the coin to see if there's a small mint mark letter. It may be blank or there may be a CC or S.
Numismedia lists the following approximate retail values as of 01/2011:
No mint mark (Philadelphia):
Very worn condition - $15
Moderately worn - $25
Slightly worn - $60
Almost no wear - $278
Uncirculated - $480 to $50,000 depending on quality
"S" mint mark (San Francisco):
Very worn - $21
Moderately worn - $56
Slightly worn - $138
Almost no wear - $570
Uncirculated - $1,120 to $21,880
If your dime has a "CC" mint mark (Carson City) it should be authenticated by a professional coin expert. 1874-CC is considered extremely rare. Sample prices:
Very worn - $10,500
Moderately worn - $17,580
Slightly worn - $19,810
Almost no wear - $55,630
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.
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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."
The 1874-CC Seated Liberty Dime is the third lowest mintage (10,817) of the entire series. A genuine circulated example has a minimum retail value of $10,000.00. If you actually have this coin, I strongly suggest sending it to a known professional grading service for authentication.
a 1917 us dime is called a mercury dime. its not that rare so it is worth about a dollar
Face value only.
check it out at this website http://www.ngccoin.com/CoinEncyclopedia.aspx
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."
The 1874-CC Seated Liberty Dime is the third lowest mintage (10,817) of the entire series. A genuine circulated example has a minimum retail value of $10,000.00. If you actually have this coin, I strongly suggest sending it to a known professional grading service for authentication.
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.