The British Museum has a number of mummies on display, so you might try seeking their advice. You might also consider the consequence of vibration on the mummies. George Bailey Objects Conservator Australian War Memorial Treloar Centre for Conservation 4 Callan St, Mitchell, A.C.T. 2911 Australia Phone: +61 6 241 6122 fax: +61 6 241 7998 email: [log in to unmask]