As of May 26 2011 the value are as shown.
A 1943 Mercury dime in poor condition or quality is worth somewhere around $2. One in great or uncirculated condition is worth up to $27.
A 1943 D Merucry dime in poor condition is worth around $3. One in great or uncirculated condition is worth up to $30.
A 1943 S Mercury dime in poor condition is worth around $3. One in great shape or uncirculated condition is worth up to $30.
To find the mint-mark on a mercury dime look at the reverse. Look to the left of the ax and the should be nothing or an D or S.
The values of your coin will change as the price of silver changes. The values stated in this answer are approximate and may not give the absolute value but give you an idea of its value.
dime = 10 cents
The 1945 nicro S Mercury Dime is 90% Silver Mercury Dime that was minted in San Francisco. San Francisco used different types of punches in 1945.
The Mercury Dime was minted in all three mints, Philadelphia, Denver, and San Francisco. Not all three mints minted the Mercury dime every year. There were no Mercury dimes from the Denver mint in 1923-D or 1930-D. If you ever see one, it's a counterfeit coin. There was never a 1934-S dime minted either.
There are two types of 1945-S Mercury Dimes. One has a normal S mintmark (the "S" indicates that the coin was minted in San Francisco), and the other has a micro S mintmark. The micro S is the more valuable of the two. A micro S can be best identified by comparing the size of the "S" on the 1945 dime to the size of the "S" on another year of Mercury dime. In other words, you are comparing the 1945 "S" to an "S" that is sure to be normal size.
1943-S is a very common date Mercury Head dime. Most coins of this type have seen heavy use and show a lot of wear. Circulated coins are $3.00-$5.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched or have been cleaned have far less value if any to a collector or dealer.
dime = 10 cents
The 1945 nicro S Mercury Dime is 90% Silver Mercury Dime that was minted in San Francisco. San Francisco used different types of punches in 1945.
The 1894-S dime is considered the rarest Mercury dime, with only 24 known to exist. This coin is highly sought after by collectors and can fetch a high price at auctions.
The 'S' stands for the mintmark for the San Francisco mint.
The Mercury Dime was minted in all three mints, Philadelphia, Denver, and San Francisco. Not all three mints minted the Mercury dime every year. There were no Mercury dimes from the Denver mint in 1923-D or 1930-D. If you ever see one, it's a counterfeit coin. There was never a 1934-S dime minted either.
I also have a 1917 s mercury dime it appears to hace dubbling on the B ,,,as most will tell tou uts worth as much as someone is willing to pay!
The size of the mintmark. The micro S is about half the size of the regular one.
There are two types of 1945-S Mercury Dimes. One has a normal S mintmark (the "S" indicates that the coin was minted in San Francisco), and the other has a micro S mintmark. The micro S is the more valuable of the two. A micro S can be best identified by comparing the size of the "S" on the 1945 dime to the size of the "S" on another year of Mercury dime. In other words, you are comparing the 1945 "S" to an "S" that is sure to be normal size.
1943-S is a very common date Mercury Head dime. Most coins of this type have seen heavy use and show a lot of wear. Circulated coins are $3.00-$5.00. Values are a market average and only for coins in collectible condition, coins that are bent, corroded, scratched or have been cleaned have far less value if any to a collector or dealer.
On average $6-$10 depending on condition. http://www.pcgs.com/prices/PriceGuideDetail.aspx?MS=1&PR=1&c=703&title=Mercury+Dime
No rare 1941-S dimes. The 1941-S Mercury dime does have large and small mintmark varieties as do all coins (except the half dollar) that were struck in San Francisco in 1941, they have no added value.
The W is not a mintmark. It is the designers initial. The possible mintmarks are D or S.