Sue,

Unfortunately, the one thing I am sure of in caring for historic and
valuable coins is that you never, NEVER, ever clean them. Use no chemicals,
abrasives, or harsh language, no matter how non-invasive it might sound.
The value and importance of coins is in their condition as well as their
rarity, and even light "cleaning" can seriously damage their appearance and
value.

I would advise you leave them for a conservator to deal with, depite the
late date. Perhaps a small label explaining that to visitors.

Mark Janzen
Registrar/Collections Manager
Edwin A. Ulrich Museum of Art
Martin H. Bush Outdoor Sculpture Collection
Wichita State University
(316)978-5850


                                                                           
             "Sue E. Clock"                                                
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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


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