In 1887, the city of Essen built a new city hall. On the facade of the building, mainly the members of the building commission had themselves depicted in the form of stone portraits. One of them was architect Peter Zindel (1841-1902). Alongside a partner, he had been awarded the contract for the construction of the city hall under the motto “industry”. The coats of arms of the German federal states were placed next to the heads.