And, of course, many of these house signs could be considered heraldic in nature; certainly many of them share many of the same traits as good heraldry: good contrast, distinctiveness, animals in stylized postures, and easy identifiability. So with that introduction, here is a selection of these house signs I discovered in my wanderings about the streets of Maastricht.
The above is on the facade of the appropriately-named
Hotel du Casque
(Hotel of the Helmet)