----------------------------Original message---------------------------- Re historic wall map preservation - I am very interested in seeing sheets separated into the original printed format as it will provide information on aspects of the printing. This can be of great value to bibliographers. Also it makes the sheets easier to reproduce by photography etc. than if the map is still in large wall map form. I guess for display we still want some in wall map form but I think research needs come ahead of this. Joan Winearls U of Toronto Map Library