I am not good at grading. Id like to sell some coins and be fair. Can you guys help? I will start with this. 1913-
We will help as much as we can. For grading, I've found that this website is often pretty good: http://www.pcgs.com/photograde/#/Lincoln/Grades And I usually use this website for values: http://www.ngccoin.com/price-guide/us/lincoln-cents-wheat-reverse-pscid-99-desig-ms Assuming that is a fingerprint on the reverse, and not whizzing, I'd call that AU-50, and its worth about $20.
I will check out the links. I dont want to break any rules here. I will put up images over the next few days. In return for help I will offer first shot here. Im not in any hurry.
Also, ask a moderator to move this into the "What's it Worth" forum. This is exactly what that forum is about.