Well, certainly at least 10 cents... It's probable you have an ordinary dime that was exposed to heat or chemicals. Another possibility is that it was plated for use in jewelry or something similar but the plating was poorly done or has worn off.
Compare its weight with a normal dime. It should come in at roughly 2.27 gm.
A 1965 sms dime has an average retail value of $2.00.
It's still worth 10 cents.
All of them are worth 10 cents.
You just spend it. A 1965 dime has no silver and is commonly found in circulation, even in better grade these coins are just worth 10 cents.
10 cents, the coin has no silver.
It's worth exactly 10 cents.
They're all worth at least $2 for their silver content.
Pre-1965 U.S. dimes are made of coin silver (900 fine), not sterling silver. In any case your coin is worth about $1 for its silver content.
10 cents.
If it was post-1964 it is worth ten cents, so long as you can get someone to recognize it as a dime. If it is pre-1965 and made out of silver, it is worth its silver content, worth up to around $1.85.
roughly 1,500$.
It's worth exactly 10 cents.