Currently I work with the Franzisco-Josephinische (3) Landesaufnahme (Austria-Hungary) map in area around Lake Neusiedel. There are some map sheets around Vienna with the scale of 1:12.500 In the legend there are different fonts for different objects (e.g. mountains, villages, cultures): https://commons.wikimedia.org/wiki/File:Abkürzungsverzeichnis,_Zeichenschlüssel_der_GKM.jpg
I exclude woods/Wälder for "W" because some area have never been woods. I assume H: heather, commen grazing ground/Hutweide and W: meadow/Wiese or grazing ground with one particualr owner.
Does anybody know the the meaning of H/W or know a reference? (Sorry if wrong exchange, but most people working with maps are here)