Well, first off you don't have a 1918 W Mercury dime, the West Point Mint wouldn't be established for several more years and never produced any coins with a W mintmark for circulation. The W is the designer's initials, any mintmark will be on the reverse. None of the 1918 coins are rare so they are worth the price of silver, assuming they are in circulated condition, which is about $2.11 at the time of writing, if uncirculated it could be worth quite a bit more.
Look at the date again, the first Mercury Head dime was made in 1916. Post new question.
a 1942 Mercury Head dime is very common, if it has any wear the value is for the silver about $2.00.
A Mercury Head dime date 1926 with no mintmark has a retail value of $2.50 to $6.00 for a coin in average circulated condition.
Please check again and post a new question. Mercury head dimes were made from 1916 to 1945.
A US dime dated 1944 is a Mercury head dime, it's very common with a value of $2.00 just for the silver.
A 1927 Mercury Head dime in average condition is $3.00-$5.00.
Look at the date again, the first Mercury Head dime was made in 1916. Post new question.
a 1942 Mercury Head dime is very common, if it has any wear the value is for the silver about $2.00.
1943 is a very common Mercury Head dime. Most are only valued for the silver, about $2.00.
A Mercury Head dime date 1926 with no mintmark has a retail value of $2.50 to $6.00 for a coin in average circulated condition.
Please check again and post a new question. Mercury head dimes were made from 1916 to 1945.
If it has any wear at all, the value is just for the silver about $1.80.
A US dime dated 1944 is a Mercury head dime, it's very common with a value of $2.00 just for the silver.
Currently no 1943 Mercury Head dime has been graded as a MS-70 (Perfect) coin. So a value can not be given
8-3-11>>> 1943 is a common Mercury Head dime. Most are only valued for the silver, about $3.00.
1943 is a very common Mercury Head dime. Most are only valued for the silver, about $2.00.
A 1918 Dime - aka - Winged Liberty/Mercury Dime - is worth in good condition (G4): $4; if its mint state is MS60, the value is: $70.