More than 200 Titanic-related lots were sold by Devizes auctioneer Henry Aldridge & Son to mark the 102nd anniversary of the loss of the ship on Saturday.
As well as selling the only known letter to have been written on board the Titanic on the day the liner struck an iceberg for £119,000, a second-class breakfast menu sold for £87,000 - beating the previous £74,000 menu record.
The menus doubled up as postcards giving the owner an opportunity to send a message to a friend or loved one from the largest and most famous liner in the world at that time.
It is only one of a handful of menus to have survived from the ship, which sailed from Southampton on April 10, 1912.
On Sunday, April 14, 1912, the New York-bound Titanic struck an iceberg before later sinking with the loss of more than 1,500 lives,
An extremely rare VIP ticket for the launch of Titanic in Belfast on May 31, 1911, sold for £40,000, which was another record.
The ticket, which still retains its perforated stub, belonged to Captain Alexander Matier who was unable to attend the launch.
And an insurance claim form detailing attempts by the most senior officer to survive the disaster to downplay the iceberg collision went for £9,000.
The unpublished four-page legal-sized form secured the ship's owner White Star Line a £3 million payout from insurers.
Auctioneer Andrew Aldridge said of the letter written on the day the Titanic sank: "The letter and envelope are in remarkable condition, with an impeccable provenance, and they represent a truly unique opportunity to own the finest example of its genre in existence.
"It is quite simply the jewel in the crown of Titanic manuscript ephemera."