![One of only 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 One of only 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](https://c8.alamy.com/comp/2FKBYCD/one-of-only-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-stands-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-2FKBYCD.jpg)
One of only 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
![A yellow plaque on a wall outside the Museo Storico Italiano della Guerra (Italian War History Museum) in the castle at Rovereto, Trentino-Alto Adige, Italy, lists military actions on Austria-Hungary's 1914-18 First A yellow plaque on a wall outside the Museo Storico Italiano della Guerra (Italian War History Museum) in the castle at Rovereto, Trentino-Alto Adige, Italy, lists military actions on Austria-Hungary's 1914-18 First](https://c8.alamy.com/comp/2FKBYCJ/a-yellow-plaque-on-a-wall-outside-the-museo-storico-italiano-della-guerra-italian-war-history-museum-in-the-castle-at-rovereto-trentino-alto-adige-italy-lists-military-actions-on-austria-hungarys-1914-18-first-world-war-eastern-front-in-which-this-rare-concrete-piercing-koda-305-cm-mrser-m11-heavy-siege-howitzer-was-used-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-2FKBYCJ.jpg)
A yellow plaque on a wall outside the Museo Storico Italiano della Guerra (Italian War History Museum) in the castle at Rovereto, Trentino-Alto Adige, Italy, lists military actions on Austria-Hungary's 1914-18 First
![305mm Compression Spring 65manganese Steel 1.2 1.4 1.5 1.6mm Wire Dia Y Type Long Spring 8-28mm Outer Dia - Springs - AliExpress 305mm Compression Spring 65manganese Steel 1.2 1.4 1.5 1.6mm Wire Dia Y Type Long Spring 8-28mm Outer Dia - Springs - AliExpress](https://ae01.alicdn.com/kf/H11218884e8384d1f8ecb371d41b051c0t.jpg)
305mm Compression Spring 65manganese Steel 1.2 1.4 1.5 1.6mm Wire Dia Y Type Long Spring 8-28mm Outer Dia - Springs - AliExpress
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