21 cm SK "Peter Adalbert"

The 21 cm SK "Peter Adalbert" (SK - Schnelladekanone (quick-loading cannon) was a German railway gun used during World War I. It served on the Western Front and in Gallipoli between 1916 and 1918. Eleven were built, using two different surplus naval guns that shared the same mount. Only four are known to have survived destruction after the end of the war.

21 cm SK "Peter Adalbert"

The 21 cm SK "Peter Adalbert" (SK - Schnelladekanone (quick-loading cannon) was a German railway gun used during World War I. It served on the Western Front and in Gallipoli between 1916 and 1918. Eleven were built, using two different surplus naval guns that shared the same mount. Only four are known to have survived destruction after the end of the war.