A map of Prussia can be found at the related linkbelow.
Map scales often show distances in both miles and kilometers (kilometres in Australia).
Depending on if the map is a global one, they both show the world on them. They show major and capital cities of countries and where they are. Continents and oceans, too ...
The map scale often will show distance in both miles and kilometers. In that way, the map is useful no matter what measure the person normally employs.
east of germany west of prussia
They both show you where everything is in the area.
They both show a representation of the Earth.
kilometers
Both a compass rose and a north arrow will show direction.
It will depend on the kind of map you look at. Both are part of the same island so on a physical map it might not show them as two entities. Political maps, showing regions, will show them.
Poland
I can show to you by : Buy a map of the philippines....