Wasserlandschaft mit einem Fluss 

"Wasserlandschaft mit einem Fluss" is a landscape painting by Johann Nikolaus Gassner, a German artist born in 1637. This monochrome watercolor depicts a winter scene with a river flowing through a valley. The viewer's perspective is placed at a low angle, looking up at the snow-covered landscape and the bare trees. The river, partially frozen, is visible in the foreground. The distant hills create a sense of depth and the cloudy sky suggests a cold and overcast day. Gassner was known for his detailed and realistic landscape paintings, capturing the beauty of nature in its various forms. This work is currently held in the Städel Museum.