The RMS Titanic collided with an iceberg, killing 1,522 passengers. The block of ice involved in this drama remains a mystery that many enthusiasts want to unravel.

A recently updated photograph of the potential culprit will be auctioned on April 27 by the Henry Aldridge & Son auction house. It was taken by one of the members of the John R. Snow and Company two days after the tragedy, on April 16, 1912. The photograph remained in the family for a long time before a collector acquired it in the early 1990s and soon put it up for auction. Its price is estimated between 5,000 and 8,500 dollars (4,600 euros and8,000 euros). The auctioneer says "no one can say with certainty that this is the one who sank the liner, but he must have had his reasons for taking a photo of this iceberg,' he adds. In October 2015, a photo also put up for sale purported to show the iceberg involved in the sinking.