How much is a US 1892 dime worth?

Answer 1

Look on the back to see if there's a small letter under the words ONE DIME. Values as of 6/2011 are:

No letter: $10 if very worn, $20 if moderately worn, $50 if almost no wear

"O": $16 / $54 / $75

"S": $70 / $250 / $335