Hi,Does anyone know how to remove a lid/cover off a Hamilton Industries metal map case that holds 5 drawers?Thank you,April Kobayashi, LibrarianU.S. Geological SurveyDenver Library MS-914P.O. Box 25046, DFCDenver, CO 80225-0046[log in to unmask]" target="_blank">[log in to unmask]303-236-1095