She wrote her account in a signed affidavit which was presented to the official British inquiry into the 1912 disaster.
Miss Francatelli, who was aged 31 at the time, stated how she woke her employers when water seeped into her cabin after the liner struck an iceberg on the night of April 14 1912. She wrote: “A man came to me and put a life preserver on me, assuring me it was only taking precautions and not to be alarmed.
“When we got on the top deck, the lifeboats were being lowered on the starboard side.
“I then noticed that the sea was nearer to us than during the day, and I said to Sir Cosmo Duff Gordon ‘we are sinking', and he said ‘nonsense, come away'.”
Miss Francatelli, from London, died in 1967. Her document is expected to fetch £15,000 when it goes for auction in Wiltshire on October 16.
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