Our mid-sized museum is preparing an exhibit of medium exchange featuring currency and coinage. Some of the early colonial coins are extremely tarnished and dark. I am unsure of how to safely "clean" or prepare these early coins for display, knowing that some cleaners are quite harsh and damaging. We do not have a conservator on staff and would not be able to consult with one at this late date. I would appreciate any comments or suggestions on cleaning methods for copper, silver and gold coins. Thank you in advance. Sue Clock Collections Manager Minnetrista Muncie, IN 47303 765-213-3540 Ext. 136 [log in to unmask] ========================================================= Important Subscriber Information: The Museum-L FAQ file is located at http://www.finalchapter.com/museum-l-faq/ . You may obtain detailed information about the listserv commands by sending a one line e-mail message to [log in to unmask] . The body of the message should read "help" (without the quotes). If you decide to leave Museum-L, please send a one line e-mail message to [log in to unmask] . The body of the message should read "Signoff Museum-L" (without the quotes).