A heavy cruiser with a displacement of 17,500 tons embodying the "Super Washington" design, known as "Proyect 138." The design was developed in 1938 at the Spanish naval shipyard in Ferrol. Under one of the draft designs, the ship's primary armament comprised twelve 203 mm main guns. However, such an ambitious project for Spanish shipbuilding would never come to life because of the country's economy following the devastating civil war.