At just under 23 m, the Etelser windmill 'Jan Wind' is the largest gallery Dutchman in the area. It was built in 1871 by Johann Christian Cordes and his wife Marie by master builder Albert Masemann (panel above the entrance). From 1904, a diesel engine supported the windmills. From 1928, grinding was only done with motor power. After the Second World War, in 1950, the wings and wheelwork were dismantled and the interior was completely redesigned with a double roller mill and silos in the upper part. In 1993, a support group acquired the dilapidated building. They handed it over to the Etelsen - Cluvenhagen - Hagen-Grinden village association, which renovated the mill. In 1996 the mill received a gallery again and when the renovation work was completed in 1999 the wings turned again. The mill takes its name from the master miller Johann Bischoff, who was known as 'Jan Wind'.