The St. Louis Merchantile Library Assoc. has a death mask of Napoleon.  It is
over the mantle to inspire readers, or at least used to be.
It would also be worth asking old cultural quilds/libraries: For example, the
Boston Athenuem, who have surprisng collections dating back to an era when
masks were more commonly made.
I would like to know what you discover.
--Annie Storr, University of Virginia [log in to unmask] (prefered)