RMS Antonia and her sister ship Andania were the first two of the six 14,000 ton "A" ocean liners built for Cunard in the early 1920s.

She made her maiden voyage from London to Montreal on 15 June 1922.

Antonia, too, was requisitioned during World War II, and served as a troop transport and later as an armed merchant cruiser.

She was purchased by the Admiralty as a repair ship in 1942, and renamed Wayland.

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