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Self-propelled mortar “Karl” (it. Gerät 040 — 040 product; after the upgrade — it. Gerät 041) — German heavy self-propelled mortar during the Second world war. One of the most powerful tank destroyer of the period. It was built only 7 copies. Were used in the storming of fortresses and heavily fortified enemy positions.

Caliber gun, 600 mm (040), 540 mm (041)
(the last photo is visible projectile)