“Secession (Ausstellung)” by A. Berger
Height: 27.5 in
Width: 17.25 in
Green/brown pyramid-mountain; black, white, red sky; black text near bottom.
Secession refers to a group of modern artists that separated themselves from the official German academy in the 19th /20th century. The style was meant to "represent the spirit of various modern movements of the era".