First you need to make sure that the coin is actually made of 90% silver.
All standard dimes dated 1965 and later are made of copper-nickel, not silver, and have the familiar dark copper stripe around the edge. However, a few 1965 and 1966 dimes were accidentally struck on silver blanks intended for the 1964-dated coins.
If your coin doesn't have the stripe around the edge, it should be inspected by a trained professional evaluator or coin dealer to determine whether it's one of these errors.
A U.S. dime is 17.91 millimeters in diamater, which is 0.00001791 kilometers.
Well, you're in the right ballpark - Apollo was a god in Greek legend - but these are called Mercury dimes, not Apollo dimes, because of the picture's resemblance to that other Greek god. But it's not really a picture of Mercury either, it's Miss Liberty wearing a winged Liberty cap. Please see the Related Question for more information.
Rarity usually determines the value of a collectors' item, but that's not always the case. Sometimes the story behind the item sets its price. Such is the case with the 1894-S Barber Dime. Recently sold for $1.9 million, this Barber Dime is the most expensive dime in US history. Barber, or "Liberty Head", coinage was produced around the beginning of the 20th century and can be identified by the, well, Liberty head. The condition of the coin can be quickly assessed by the state of the word "liberty" written on her headband, as it tends to be the first bit to wear. This particular Barber Dime is famous for the mystery surrounding its origin. Thought at first to be minted to make up a balance at the San Francisco Mint, the currently accepted story is that 24 of these coins were minted to be given to banker friends of the mint's superintendent, John Daggett. Each of the seven bankers received three of the dimes while the last three were given to his daughter who, reportedly, spent one of them on ice cream. Collectors account for only nine of the expensive dimes. The most expensive dime was sold by Oakland businessman Daniel Rosenthal to an anonymous buyer who does not, in fact, plan to spend the dime on ice cream. It was transported by a Virginia Beach coin dealer who didn't eat, sleep or drink until the coin was in the hands of the buyer. Source: http://most-expensive.net/dime-us-coin
7-15-11>>> The coin is a Eisenhower dollar (1971-1978) and none of the bicentennial dollars (1776-1976) made for general circulation have any silver or are worth more than face value. Only Proof and collectors coins sold from the US Mint are worth more.
Not much, the old 10 pence coins usually sell for about a quarter or so in the US, the 10p coin was reduced in size and so the old large ones (the size of a Florin) are demonetized, but they still sell for about the equivalent exchange rate in the US. However, I believe you got your date wrong as there are no British (or Irish) 10p coins dated 1966. The equivalent coin minted in 1966 would be the Florin, worth 2 shillings.
what is the value for an American 1909 silver dime
If it is a US dime, it isn't silver. Silver stopped being used in dimes after 1964, so any dime dated 1965 or later is struck in copper-nickel and are only worth face value.
10 cents.
The value is about $2.00 just for the silver.
For the answer, visit: http://www.coinflation.com/coins/1946-1964-Silver-Roosevelt-Dime-Value.html
The values is for the silver about $1.00
A US dime dated 1944 is a Mercury head dime, it's very common with a value of $2.00 just for the silver.
As of July 2013 all US 90% silver dimes at this time have a value of about $2.75 each.
A 1964 US dime is so common most are valued only for the silver at about a dollar.
Most are only valued for the silver, about $2.00.
The US does not use centavos as their currency.
If the coin has any wear the value is for the silver, about $2.00