C'mon. When I was looking through my "undated" buffalo nickels, I found that when you tilt the coin in the light, it's a 1913. On the back it shows it is a type two. That coin is one of my better undated nickels and would be about a f-12 to a vf-20 if it had a date. Even though it would be only worth about 15-20 bucks, I'm a new collector and got excited when I saw it. What should I do with it?
Once you are a pickle you can't be a cucumber again. If you can see 1913 and it's a type 2 reverse then keep it until you get a better example.