150-mm sFH 18 field howitzer

The sFH 18 entered service in 1934 and became the principal division-level heavy artillery weapon of the German army in World War II. These guns were supplied to the Finnish army and designated m/40.

The monobloc gun tube was fitted into a reinforcing sleeve that featured a beefed-up breech ring. The counter-recoil cylinder was fitted above the barrel on a short support; the recoil buffer was fitted below the barrel and was surrounded by a cooling jacket. The gun was mounted on a...