I have been saving some of the copper pennies only 1970 and before I have since filled a ziplock bag full and I didn't like the idea of them just in bags so decided to go through them all and sort to dates and mint marks and put them in rolls. I will use this later. When I have 10-15 rolls of each to go through and look for Errers and Varietys since iam just starting out and really havnt decoupled the eye for it yet. Does anyone else do something similiar to this?