The lunch, including consommé mirrette, sweetbreads and spring lamb, was served to officers on the first day of sea trials on 2 April 1912.
It belonged to Second Officer Charles Lightoller, the most senior crew member to survive, who gave it to his wife as he left Southampton on 10 April 1912.
Lightoller's postcard size lunch menu is expected to fetch between £80,000 and £100,000 when it goes under the hammer at Henry Aldridge and Son, in Devizes, Wiltshire, next weekend.
Source: BBC