Esther Hart sat down with her seven-year-old daughter Eva to write the letter just eight hours or so before the Titanic hit the iceberg. It was for her mother in London. And in it Mrs Hart wrote that they were enjoying what she called "the wonderful journey".
She said they were likely to arrive in New York early because of the speed at which the ship was travelling.
The letter ended up in the coat pocket of her husband Benjamin and only survived because he gave her the coat to keep warm. He died along with more than 1,500 others.
Titanic memorabilia continues to be big business. A menu on the day of the disaster was recently sold for £76,000 whilst a violin, played as the ship sank, went for £900,000.
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approximately; more or less
(here) crashed into
stayed alive after nearly dying because of an accident or illness
objects which people collect because they are related to a particular place, person or event
financial activites which generate a lot of money