Dear Mr. Holden: I believe I read recently that the Cairo Museum (National Archeaology Museum of Egypt?) constructed exactly such micro-climate containers for their mummies. Hope this helps. With every good wish, Steven ********************************************************************** Steven R. Smith Art Collection Tel: (617)495-3150 Harvard Law School FAX: (617)495-4449 Cambridge, MA 02138 E-mail: [log in to unmask] **********************************************************************