Celluloid Cover for Road Maps
Road maps are easily soiled and torn unless properly protected, and a satisfactory case to hold them should provide for conveniently examining the map. A piece of transparent celluloid about twice the size of the map when folded can be made into a suitable cover. Fold the celluloid into an envelope form and rivet or sew the ends, leaving the fourth edge open. The map is inserted in the cover with the desired section uppermost, affording protection and ready access at the same time.