A thin sheet impregnated with a coloring agent will allow you to accurately transfer the drawing, getting an additional fragment of the map. 

Using the copy sheet, you will be guaranteed to receive one scrap of an ancient map from each battle within an hour, if Normal conditions for obtaining such scraps are met (killing a suitable monster or opponent with an elemental weapon). 

The item can only exist in Elinor's world 7 d., after which it will disappear without a trace.