Tjenestested Naval Control Service (N.C.S.) Southend

Since the beginning of their war in 1939 the British Admiralty, through their Naval Control Service Officers (N.C.S.O.) in the principal ports of the world, have maintained a routing, diverting and reporting service, covering all areas except those under control of the Axis. The details of instruction for N.C.S.O.'s are laid down in "Naval Control Service Instructions".