Gable stones are carved and often colourfully painted stone tablets, which are set into the walls of buildings, usually at about 4 metres from the ground. They serve both to identify and embellish the building and may also tell us something about its owner.
This one at the "Prinsengracht" in Amsterdam is not an old one as you can see from the date. The owner of the house made a joke with this stone and probably his name. The "Batenburg" stone shows puns on the word "baten" (to profit) and burg (castle) which together make up the name of a village near Nijmegen. In that village coins were made which were counterfeit, the weight wasn't secure and the counterfeit coins made gold out of silver for the makers.