There were no 1898 Mercury Dimes released, Mercury dimes refer to dimes struck from 1916-1945 that depict Liberty with wings on her head.
Instead an 1898 dime is known as a "Barber" dime after Charles Barber who designed it.
Look at the back of your coin, if your coin has no mintmark, it is just worth scrap in heavily circulated condition (about $2 or so) If it has an O or S it has modest value of about $5 in worn condition (although the value jumps dramatically in better condition, particularly with the 1898-O)
The 1938 Mercury dime is common. Average circulated coins are $4.00.
The value is $3 if it is in mint condition. $2 if circulated.
With a date of 1912 it's not a Mercury dime, it's a Barber dime. The first Mercury dimes were struck in 1916. Assuming the coin is in average circulated condition and has no mintmarks, value is $3.00-$6.00.
The 1916-D Mercury dime is the key-date coin of the series. Genuine examples of a circulated coin have values from $900.00 to more then $10,000.00.
A 1939 Mercury Head dime in average circulated condition has a retail value of $2.00-$4.00
The 1938 Mercury dime is common. Average circulated coins are $4.00.
The value is $3 if it is in mint condition. $2 if circulated.
With a date of 1912 it's not a Mercury dime, it's a Barber dime. The first Mercury dimes were struck in 1916. Assuming the coin is in average circulated condition and has no mintmarks, value is $3.00-$6.00.
The 1916-D Mercury dime is the key-date coin of the series. Genuine examples of a circulated coin have values from $900.00 to more then $10,000.00.
A 1939 Mercury Head dime in average circulated condition has a retail value of $2.00-$4.00
7-19-11>>> 1928 is a common date Mercury dime, most circulated coins are $4.00-$6.00.
1920 is a common date for mercury dimes. In circulated condition, your dime is worth about $2 in silver melt. In better shape it might be worth closer to $10 or even more if well struck and completely uncirculated.
A 1941 Mercury Head dime is a very common coin, circulated coins have retail values of $3.00-$4.00 regardless of any mintmarks.
Average values are $4.00 to $5.00 for most circulated 1929 Mercury head dimes.
This coin in circulated condition is valued around $3. If it is uncirculated they are worth around $30.
The 1916-D Mercury dime is the key-date coin of the series. Genuine examples of a circulated coin have values from $900.00 to more then $10,000.00.
A 90% silver 1945 Mercury dime is fairly common and sells for melt (about $1.60 at today's silver prices) if circulated and $20 or so if absolutely uncirculated.