A 108-year-old photograph, which shows the iceberg that sank the Titanic, has resurfaced this week as it's set to be auctioned.
The photo was taken by the captain of another passenger liner crossing the Atlantic, two days before the infamous Titanic sinking on April 14, 1912.
Captain W Wood, who served on the SS Etonian, took the black-and-white picture by pure coincidence on his Atlantic voyage, as he had an interest in photography.
Captain Wood mistakenly dated the picture 1913 rather than 1912.
Crucially, the captain made a note of the geographic coordinates of the iceberg, which were almost the same for when the Titanic struck.
The Titanic, which was built in Belfast's shipyards, struck the iceberg at 10.20pm on the 14th, sinking just under three hours later and resulting in the loss of over 1,500 lives.
Following his crossing the Atlantic, Captain W Wood sent a print of the photograph to his great-grandfather.
He also sent a letter, in which he states that the iceberg was the same as the one that sank the Titanic.
He wrote: "I am sending you a sea picture, the Etonian running before a gale and the iceberg that sank the Titanic.
"We crossed the ice tracks 40hrs before her and in daylight, so saw the ice easily and I got a picture."
He also wrote a caption on the photo, noting "iceberg taken by Captain Wood SS Etonian in 41°50N 49°50W April 12th at 4pm."
This is not the first time that pictures of the iceberg believed to have been responsible for the sinking have resurfaced.
In October 2015, a grainy black-and-white photograph of the iceberg, which was taken hours after the Titanic sank, on April 15, sold at auction for £21,000.
Now, Captain W Wood's photograph and letter are being sold at auctioneers Henry Aldridge and Son of Devizes, Wilts.
According to the Daily Mail, auctioneer Andrew Aldridge said: "There were never any photographs taken on board the Titanic of the iceberg, only images of ones in the same area in the days before and after.
"But Captain Wood's photograph must be the most likely of all of these images.
"Fredrick Fleet was the lookout who first spotted the iceberg and he later drew a sketch of it, as did crew member and eye-witness Joseph Scarrott.
"Their sketches both appear similar to the iceberg in this photo and have the same distinctive odd shape at the top.
"But the letter from Captain Wood adds far more weight to this iceberg being the one. He seems unequivocal that this one was the iceberg that sank the Titanic.
"It was pure luck that Captain Wood took the photo when he did."
The 5-inch-by-4-inch photograph will sell on June 20.
