At the National Museum of African Art, we use the text field "Exhibition
History" to record any exhibitions an object might have been in prior to its
coming into the collection. Thereafter, we link the object to shows in the
Exhibitions Module, with either an exhibition attribute type of "Exhibition
Origin" - either "in house" or "external." It's a good way to keep track.

Jeffrey Smith
Database Administrator
Smithsonian Institution
PO Box 37012
National Museum of African Art
Room 1110, MRC 708
Washington, DC 20013-7012
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phone 202-35-74600 ext. 242
fax        202-357-4879