kappputsch

"The Kapp Putsch, also known as the Kapp-Lüttwitz Putsch after its leaders Wolfgang Kapp and Walther von Lüttwitz, was an attempted coup on 13 March 1920 which aimed to undo the German Revolution of 1918–1919, overthrow the Weimar Republic and establish a right-wing autocratic government in its place. It was supported by parts of the Reichswehr (military) and other conservative, nationalist and monarchist factions. The coup took place in the capital, Berlin, and the legitimate German government was forced to flee the city. The coup failed after a few days, when large sections of the German population followed a call by the government to join a general strike. " en.wikipedia.org/wiki/Kapp_Putsch

see also

Von Lüttwitz: www.flickr.com/photos/library_of_congress/37070651442/

Thank you, Art and B-59, for providing more information about the event pictured here!

en.wikipedia.org/wiki/Walther_von_Lüttwitz Von Hulsen might be en.wikipedia.org/wiki/Bernhard_von_Hülsen or his older brother Walter. Picture of Bernhard at prussianmachine.com/korps/huelsen_bernhard.htm has similar ears, but that's hardly definitive for brothers.

The caption printed on what was presumably a postcard relates the photo to a "gegenrevolution" in March 1920. See en.wikipedia.org/wiki/Kapp_Putsch "The Kapp Putsch, also known as the Kapp-Lüttwitz Putsch after its leaders Wolfgang Kapp and Walther von Lüttwitz, was an attempted coup on 13 March 1920 which aimed to undo the German Revolution of 1918–1919, overthrow the Weimar Republic and establish a right-wing autocratic government in its place. It was supported by parts of the Reichswehr (military) and other conservative, nationalist and monarchist factions." www.axishistory.com/axis-nations/36-germany/germany-freik... connects Freikorps Hülsen ( a paramilitary group founded by Bernhard Hülsen) with the Kapp Putsch.

Earlier Bain photo of Lüttwitz

Earlier Bain photos of the Kapp Putsch:

from the Kapp Putsch, see

Getty Images has this caption:
"Profile view of soldiers as they guard an entrance to the Reichstag, the seat of the Weimar Republic's National Assembly, during the abortive Kapp Putsch, Berlin, Germany, mid March 1920. The putsch was an attempt to overthrow the monarchy.
March 14, 1920"
www.gettyimages.com/detail/news-photo/profile-view-of-sol...
see also

Thanks for the additional context!