As with any coin, it will show wear.
If it is a circulated dime, then it is worth about $1.00, mostly depending on the value of silver
$1 in circulated condition.
In average circulated condition, it's worth about $2.
Assuming the coin is circulated and has no mintmark, the 1927 Mercury Head dime is a common date of the series. Average circulated coins are $4.00-$5.00.
In circulated condition $10.00 to $70.00
Assuming the coin is circulated and has no mintmark, the 1908 Barber dime is a very common coin, for a coin in average circulated condition the values are $2.00-$8.00 retail.
A circulated 1939 US dime is worth about $2.70. An uncirculated US 1939 dime is worth between $9.00 and $20.00.
The 1938 Mercury dime is common. Average circulated coins are $4.00.
The current estimated value of a 1917 Mercury dime which is somewhat worn can vary between $2 and $25, depending on its exact condition.
Assuming the coin is circulated and has no mintmark, the 1899 Barber dime is a high mintage common date coin. Retail values for average circulated coins are $4.00-$8.00.
The value of a 1943 Silver Mercury Dime in circulated condition is about $3; in uncirculated condition, $7 to $8.
Retail price for a 1914 Barber Dime is $2.00-$8.00 for average circulated coins.