others (such as ) retained their original name. They were well known for the lavender-hulled liners with red funnels topped in black, running on a rigid timetable between Southampton and Cape Town. Every Thursday at 4pm a Union-Castle Royal Mail Ship would leave Southampton bound for Cape Town. At the same time, a Union-Castle Royal Mail Ship would leave Cape Town bound for Southampton. In 1922 the line introduced its Round Africa service, a nine-week voyage calling at twenty ports en route. Alternate sailings travelled out via the Suez Canal and out via West Africa. The combined line was bought by Royal Mail Line in 1911, but continued to operate as Union-Castle. Many of the line's vessels were requisitioned for service as troop ships or hospital ships in the First World War, and eight were sunk by mines or German U-boats. The Royal Mail Line ran into financial difficulties in the 1930s, culminating in the prosecution of its director Lord Kylsant, and Union-Castle Line became an independent company again with Vernon Thomson as Managing Director. Many vessels were again requisitioned in the Second World War. Three – , Carnarvon Castle, Dunvegan Castle became armed merchant cruisers. (1939) was also first requisitioned as an armed merchant cruiser, but later served as an escort carrier. After the war the line made good use of its three ships converted to troop transports to facilitate carrying the vast number of emigrants seeking new lives in East and South Africa. When they ran out of berths the line set up its own internal travel agency to book passages on other lines and even air services. The mail service to South Africa, curtailed during hostilities, recommenced with the sailing of Roxburgh Castle from Southampton on 2 January 1947. British & Commonwealth, and International Liner Services The company took over the King Line in 1949, and merged with Bullard King and Clan Line in 1956 to form British & Commonwealth Shipping. It merged with South African Marine Corporation in 1973 to create International Liner Services, but competition with air travel adversely affected its shipping activities, and cargo shipping rapidly became containerised. The final South African mail service arrived in Southampton on 24 October 1977, and International Liner Services withdrew from shipping in 1982. British & Commonwealth continued in other fields, and acquired Atlantic Computers in 1989, but accounting problems soon became apparent and British & Commonwealth was