I noticed that on early clad coins, the clad edge can be somewhat uneven. In some areas it can not show any copper, and in other it can show a lot. It seems like they perfected this by the '70s. I doubt that it is silver, but you can still always weigh it to be sure. Good luck.
I got an SMS a few years ago, that I swore to the Almighty, had a silver Kennedy in it. No stripe on the edges. Very promising, until I weighed it.........'clad'.
Even if it weighs heavy, how do you know if it is just clad heavy and in tolerance or silver? You still have to do a metal analysis, or have it graded. (As a wrong metal error.)
It's kind of rare to find a clad dime with no copper showing on the edge. It's unusual, though not quite so rare, to find one that's toned to look like old silver. You literally have close to a one-in-a-billion chance of finding a post-1964 dime struck on silver. That said, it could happen -- but the very next thing to do is to weigh your coin on an accurate scale. Cheap, and easy; you could buy one from Amazon for under $20. If it's close to 2.5 grams, either find a jewelry store where you can pay them to use an XRF gun on it, or go ahead and send it to a TPG for authentication. That's more money, but if it's real, you're still way ahead.
Go have yourself an ice ceam to celebrate. Save the stick, measure the center and balance the stick on a round pen/pencil. Place your dime in question on one side and another dime on the other. ------------+-------------- Walla! CLAD or silver?
I vaguely remember roll searching for silver back in the late sixties. Pour the dimes out into the palm of your hand with the edges showing, and the silver ones are quite noticeable. But as stated several times here, weigh it and let us know what the verdict is.