HAU - Hamburg Amerikanische Uhrenfabrik wall clock with pendulum, German vintage clock

This fantastic and unique clock by the German company HAU (Hamburg Amerikanische Uhrenfabrik) was made in the 1920s. The HAU company had been operating since 1883 and in 1927-28 it was taken over by Junghans. The trademark is two crossed arrows. The clock box is made of wood. The clock's doors have stained glass windows made of beveled glass.