The Mercury head design was discontinued at the end of 1945 so a the coin you describe could not exist. Please check the coin again and post a new question with its date and condition. Also look for the mint mark, if any, next to the word ONE on the back of the coin.
If your coin is a Roosevelt dime minted between 1946 and 1964 the mint mark, if any, will be near the bottom of the torch on the reverse side.
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.
1945 is the last year for Mercury head dimes. 1946 is the first year issue for Roosevelt dimes. No matter, both are very common and most are only valued for the silver, about $2.00.
The Winged Liberty Head Dime also known as the Mercury Dime was minted from 1916-1946.
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.
1945 is the last year for Mercury head dimes. 1946 is the first year issue for Roosevelt dimes. No matter, both are very common and most are only valued for the silver, about $2.00.
A US dime dated 1944 is a Mercury head dime, it's very common with a value of $2.00 just for the silver.
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.