discoveries made in the first half of the 19th century, and issued the 1908 Letters Patent incorporating the British Falkland Islands Dependencies with a permanent local administration in Grytviken established in 1909. Britain's 1908 Letters Patent established constitutional arrangements for its possessions in the South Atlantic, including the formal annexation of the South Sandwich Islands. The Letters Patent listed these possessions as "the groups of islands known as South Georgia, the South Orkneys, the South Shetlands, and the Sandwich Islands, and the territory known as Graham's Land, situated in the South Atlantic Ocean to the south of the 50th parallel of south latitude, and lying between the 20th and the 80th degrees of west longitude". In 1917 the Letters Patent were modified, applying the "sector principle" used in the Arctic; the new scope of the Falkland Islands Dependencies was extended to comprise "all islands and territories whatsoever between the 20th degree of west longitude and the 50th degree of west longitude which are situated south of the 50th parallel of south latitude; and all islands and territories whatsoever between the 50th degree of west longitude and the 80th degree of west longitude which are situated south of the 58th parallel of south latitude", thus reaching the South Pole. The 1908 Letters Patent were not disputed by Argentina at the time, but in 1948 Argentina conceived an argument that they were invalid on the grounds that they allegedly encompassed parts of the South American mainland as well as the Falklands, making the latter dependencies of themselves. All whaling stations on South Georgia operated under whaling leases applied for by each company and granted by the Governor of the Falkland Islands and Dependencies. On behalf of the Compañía Argentina de Pesca, the application was filed with the British Legation in Buenos Aires by the company's president Pedro Christophersen and Captain Guillermo Nuñez, a technical advisor and shareholder in the company who was also Director of Armaments of the Argentine Navy. From 1906 on the Argentine company was operating in compliance with its whaling and sealing leases granted by the Falklands Governor. That continued until Grytviken was sold to Albion Star (South Georgia) Ltd. in 1960, closed in 1964, and eventually purchased by Christian Salvesen Ltd. Carl Anton Larsen, the founder of Grytviken was a naturalised Briton born in Sandefjord, Norway. In his application for British citizenship, filed with the British Magistrate of