A Victoria Cross and other awards won by Norwich-born Corporal Sidney Day fetched nearly £200,000 at a London auction.
The lot, which included the VC won in 1917, three campaign medals, a cigarette case and a leather compass case all owned by Mr Day were sold to a telephone bidder for £198,400.
Mr Day was one of only two men from the Suffolk Regiment ever to be awarded Britain's highest gallantry decoration and has been described as one of the most extraordinary survivors of the First and Second World Wars.
He won his VC for heroics during the capture of a complex German trench system at Hargicourt on August 26, 1917.
His later plan to live a quiet life by opening a tea room in Portsmouth went awry when his business and home were destroyed by the Luftwaffe in the Second World War and he narrowly escaped death.
The items were auctioned by Dix Noonan Webb, the international coins, medals and jewellery specialists, on February 28.
They were sold by order of his family along with an emotive archive of material.
A spokesperson for the auction house would not divulge details of the buyer, other than to say it was a telephone bidder.
The cigarette case was given to Mr Day by the parents of a young officer whose life he unsuccessfully tried to save.
The leather compass case stopped a bullet that could have killed him, while a government document compensating him for the destruction of his home and business by German bombers was included in the collection.
The lot had been expected to fetch from £120,000 to £140,000.
Mark Quayle, medals specialist at Dix Noonan Webb said: 'Sidney Day's survival in the First World War was nothing short of miraculous.
'He suffered five wounds, was saved from serious injury on two occasions when equipment and personal possessions deflected bullets and was twice forced to crawl back to British lines. He was eventually taken prisoner.'
After years of declining health, Mr Day passed away on July 17, 1959.
A stone commemorating him in front of the Norwich War Memorial was dedicated on August 26, 2017 – exactly 100 years after the deeds
that won him the Victoria Cross.
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