The watchtower in Sachsenhausen 

"The Watchtower in Sachsenhausen" is a watercolor painting by Heinrich Rumbler, a 19th-century German artist. The artwork depicts a medieval watchtower, a common feature of fortified settlements in the region, standing tall against a backdrop of a cloudy sky. The tower, rendered in muted tones, is a testament to the architectural history of Sachsenhausen, with its robust structure and simple details. The painting is a fine example of Rumbler's meticulous attention to detail and his ability to capture the essence of his subjects through subtle brushstrokes and delicate washes of color. The artwork is currently part of the Städel Museum's collection.