Cunard poster featuring the 'Scythia' and 'Laconia', early 1920s

Scythia sailed on her maiden voyage in 1921, and became a troop and supply ship during the Second World War and lasted until being scrapped in January 1958. Scythia was the longest serving Cunard liner until 4 September 2005, when her record was surpassed by Queen Elizabeth 2

19,761 GRT

600.7 ft (183.1 metres) long x 73.8 ft (22.5 metres) broad

Passenger berths:
350 1st class
350 2nd class
1,500 3rd class

The second RMS Laconia was a Cunard ocean liner, built by Swan, Hunter & Wigham Richardson as a successor of the 1911–1917 Laconia. The new ship was launched on 9 April 1921, and made her maiden voyage on 25 May 1922 from Southampton to New York City. At the outbreak of the Second World War she was converted into an armed merchant cruiser, and later a troopship. 

She was sunk in the South Atlantic Ocean on 12 September 1942 by torpedoes. Like her predecessor, sunk during the First World War, this Laconia was also destroyed by a German submarine. Some estimates of the death toll have suggested that over 1,658 people were killed when the Laconia sank. The U-boat commander Werner Hartenstein then staged a dramatic effort to rescue the passengers and the crew of Laconia, which involved additional German U-boats and became known as the Laconia incident. (Wikipedia)