BL 4-inch Mk I – VI naval gun
The BL 4-inch gun Mk I – Mk VI were a family of early British breech-loading 4-inch naval guns.
BL 4-inch Mk I – VI naval gun
QF 4-inch naval gun Mk I – III
The QF 4-inch gun Mks I, II, III were early British QF (quick-firing) naval guns originating in 1895. They all had barrels of 40 calibres length.
Australian troops with gun on a transport ship, circa. November 1914
The 4-inch QF gun on Hirta looking towards Dùn