Need some help with what I should do about the problems from these Whitman coin folders. I have had these for a really long time and I really haven’t looked at them it probably 8 to ten years because I have focused on other things. The Lincoln cents and getting the green corrosion on the 1980s. My franklin and standing liberty halves are getting blackened areas along with my mercury dimes. The Barber nickels seem fine. Should I take these out and neutralize them with something or rinse them to stop this and transfer them to a better holder. All my coins were always kept inside in an air conditioned envirment. I would appretitiate any advise someone can give on which way to proceed from here. Thanks!