![One of three surviving examples of the concrete-piercing Škoda 30.5 cm Mörser M.11 heavy siege howitzers used by Austria-Hungary on its Italian and eastern fronts in World War I, and also by One of three surviving examples of the concrete-piercing Škoda 30.5 cm Mörser M.11 heavy siege howitzers used by Austria-Hungary on its Italian and eastern fronts in World War I, and also by](https://c8.alamy.com/comp/2FKBYC5/one-of-three-surviving-examples-of-the-concrete-piercing-koda-305-cm-mrser-m11-heavy-siege-howitzers-used-by-austria-hungary-on-its-italian-and-eastern-fronts-in-world-war-i-and-also-by-nazi-germany-in-world-war-ii-displayed-outside-the-museo-storico-italiano-della-guerra-italian-war-history-museum-at-rovereto-trentino-alto-adige-italy-it-fired-305-mm-12-ins-shells-that-could-penetrate-reinforced-concrete-up-to-2-m-thick-blow-a-crater-8-m-26-ft-wide-and-deep-and-kill-enemy-soldiers-up-to-400-m-1312-ft-from-the-blast-2FKBYC5.jpg)
One of three surviving examples of the concrete-piercing Škoda 30.5 cm Mörser M.11 heavy siege howitzers used by Austria-Hungary on its Italian and eastern fronts in World War I, and also by
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