A new exhibit has recently opened at the Postal Museum in London — Voices from the Deep. The exhibit features undeliveredd letters retrieved from the wreck of the SS Gairsoppa, a British merchant ship which was sunk by a U-boat 300 miles southwest of Galway Bay in 1941. The SS Gairsoppa is best known for her cargo, which as well as pig iron and tea included 240 tonnes of silver. Between 2012-2014, Odyssey Marine Exploration, under contract with the UK government, recovered close to 99% of the insured silver from the wreck which is almost three miles deep.
Remarkably, something far more rare than silver was also recovered from the wreckage. Twelve bundles of mail bundles of letters, over 700 letters and postcards, were miraculously preserved in an air pocket in the hold of the ship.