Dude.. On the Obverse side you have a Lamination error not a die crack.. Congrats! Lamination has to do with the planchet and a die crack is caused by a cracked die. That's the difference. The issue on the Reverse has nothing to do with a feeder finger.
Here is some great information on Lamination cracks for you - http://www.error-ref.com/lamination-cracks/
You can't delete any threads. But this one nickel should be your redemption. No need to feel the way you do. It takes time to learn the difference between real mint errors and damage. You won't learn if you don't ask. Many years ago I submitted 3 coins to a well known coin attributor. I was so sure they were mint errors. All 3 coins came back as damaged. But I learned!
In addition to the link Ed posted there is a wealth of info at www.doubleddie.com. John Wexler's site has all sorts of info on all sorts of errors and would be well worth your time to investigate.
Don't worry about deleting posts, because as far as you being 0 fer 3 with your posts, someone else, with the same or similar questions, would now be 3 fer 3 by using these answers to your posts. It's all about helping each other learn. I know I've been helped a lot. CAN I GET AN AMEN !!
