 His company, called Jessop Marine, won the contract for the salvage rights to the wreck of "Edinburgh" because his methods, involving complex cutting machinery and divers, were deemed more appropriate for a war grave, compared to the explosives-oriented methods of other companies.In late April 1981, the survey ship discovered the ship's final resting place at an approximate position of 72.00°N, 35.00°E, at a depth of within ten days of the start of the operation.Using specialist camera equipment, the "Dammtor" took detailed film of the wreck, which allowed Jessop and his divers to carefully plan the salvage operation.