At the conventions what type of slide container do I need to show slides? I have several square tube types. Will these work, or do I need to change over to the circular trays? Thanks Mike Dickinson Jamestown N Y. The Erie Lackawanna Mailing List http://EL-List.railfan.net/ To Unsubscribe: http://Lists.Railfan.net/erielackunsub.html ------------------------------