For instance the "Batenburg" stone from Prinsengracht, Amsterdam, shown here puns on the words baten (to profit) and burg (castle), which together make up the name of a village near Nijmegen.
The largest of these libraries, the Centrale Bibliotheek, moved to the Prinsengracht in 1977 and 30 years later, on 7 July 2007 (070707), to the Oosterdokseiland, just east of Amsterdam Centraal station.
For instance the "Batenburg" stone from Prinsengracht, Amsterdam, shown here, puns on the words baten (to profit) and burg (castle) which together make up the name of a village near Nijmegen.