From Wikimedia Commons, the free media repository
The Nebelwerfer (or smoke shell mortar) was a German towed artillery piece, developed in the 1930s and used in World War II. It had six 150mm (in later versions five 210mm) barrels, from which it fired rockets.
World War II photos
- There are lots of Bundesarchiv images. See Category:Nebelwerfer for the rest.