The upgraded postwar project for cruiser De Zeven Provinciën. The cruiser started to look like a modern ship—her superstructures had been enlarged; torpedo launchers and on-board hydroplanes removed; 57 mm anti-aircraft artillery mounted; and the number of main guns, which occupied four twin-gun mounts, restored to the value specified in the initial project. De Zeven Provinciën entered service in 1953. Between 1962 and 1964, Terrier missile launchers were installed on board t...