well, this is just quick idea now that map making is possible....
The idea is that make a building that village's lawspeaker can build into which you can insert differend parchments (maps, announcenment, village laws?) so that you could go look the map or other things from there and there would not be need to carry own map around all the time.
only thing i think that should be made was that the parchments on it placed by the lawspeaker ( or maybe some other type authority character of that town) couldnt not be removed by no other than other authority figures of same town, and authority would be automatically be only on lawspeaker, unless he gives other people authority.
well... thats just the idea i had...