What is the value of a 1901 US dime?

Look on the back of the coin to see if there's a small mint mark letter below the wreath. It may be blank or there may be an O or S.

Numismedia lists the following approximate retail values as of 03/2010:

No mint mark (Philadelphia):

Very worn condition - $2

Moderately worn - $7

Slightly worn - $9

Almost no wear - $62

Uncirculated - $106 to $4,230 depending on quality

"O" mint mark (New Orleans):

Very worn condition - $6

Moderately worn - $17

Slightly worn - $26

Almost no wear - $178

Uncirculated - $450 to $12,030

"S" mint mark (San Francisco):

Very worn condition - $81

Moderately worn - $339

Slightly worn - $450

Almost no wear - $734

Uncirculated - $1,080 to $26,650

Answer

The 1901 Barber Silver Dime was minted in Philadelphia, New Orleans and San Francisco so the value depends on where it was minted and what condition the coin is in. According to USA Coin Book, these are the values:

Philadelphia (no mint mark): In good condition, this coin is worth about $5.75 up to about $100 in MS60 mint condition. In MS63 choice uncirculated grade, this coin is worth about $150. Proof coins were also minted in Philadelphia and these are worth about $420 in PR63 choice proof condition.

New Orleans (small "O" mint mark): In good condition, this coin is worth about $6.75 up to about $420 in MS60 mint condition. In MS63 choice uncirculated grade, this coin is worth about $900.

San Francisco (small "S" mint mark): In good condition, this coin is worth about $80 up to about $940 in MS60 mint condition. In MS63 choice uncirculated grade, this coin is worth about $1525.

All coin prices depend on characteristics of the coin itself. The wear and condition of the dime play a huge role of its pricing. Along with its mintage of almost 18 million the coin is pretty common. It has a .900 silver composition, so its always worth its silver. A 1901 dime with sell for right around 2-3 dollars. A barber dime like this would de a great gift to a child or grandchild. If your 1901 dime is in very very nice shape it can be worth 70-120 dollars in some cases.

I would check out pcgs.com for more up-to-date pricing and for more information about pricing.