Were there really piles of spent artillery shells littered across the battlefields of WW1? If so, what'd they do with them all after the Armistice? - Quora
WW1 ARTILLERY SHELL CASING TRENCH ART GUERRO 1915-19 COPPER DECORATIVE ART WORK | eBay
Artillery shell ww1 immagini e fotografie stock ad alta risoluzione - Alamy