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Here at UW-Milwaukee the Geography Department Map Library owns a large
collection of well used relief maps, the ones made of vacuum formed
plastic.  Does anyone have conservation advice about saving them?  They
are looking out for better weather due to years of hanging in
flourescent-lit classrooms, enthusiastic lecturers with rubber-tipped
pointers, and bulk storage in a pile.  I've got them stored on edge now,
more or less protected from lights and sun and am wondering about
mounting them on corrugated cardboard or something.  Are there any better
ideas out there?
 
Thanks for your interest.  Skip Porter, map librarian