‘Trench art’ is a term used to describe objects made from the debris and by-products of modern warfare. Trench Art is usually associated with the First World War, although similar items have been produced in other conflicts too.
Artifacts
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Beauty from Bullets - Bodmin Keep: Cornwall's Army Museum
Beauty from Bullets - Bodmin Keep: Cornwall's Army Museum
First World War (WWI) The Canadian Encyclopedia
Even In 'The War To End All Wars,' There Was Art Coming From The Trenches : NPR
WWI Inventions, From Pilates to Zippers, That We Still Use Today