I don't care what year, I don't care what country, I don't care what grade. Problem coins will be accepted and treasured as they serve one last purpose in life! I need about 25 (or more) low value aluminum coins in a variety of countries, dates, and grades for a destructive experiment that I intend to run. If you've been following the discussion here, then you know what fate awaits these poor coins: https://www.cointalk.com/threads/is-acetone-really-the-trick.322411/ If you are willing to donate to science, please let me know and I'll send you my address. Anyone who wants to participate will receive credit in the thread I'll start. If you desire fair compensation to vanquish this foe, let me know and I'll shoot a couple electronic dollars your way. Thanks!