This is a small selection of Delft tiles, like those on display in the stairwell of the Crüwell House in Bielefeld.

de.wikipedia.org/wiki/Cr%C3%BCwell-Haus_(Bielefeld)

They come from the collection of the merchant Richard Mitzlaff-Crüwell and were produced between the 16th and 18th centuries.

en.wikipedia.org/wiki/Delftware