The bomber was shot down over the Kent coast more than 70 years ago.
More than 1,500 examples of the Dornier 17 medium bomber were built.
Nicknamed the Luftwaffe's 'flying pencil' bombers because of their narrow fuselage, this aircraft is said to be in 'remarkable condition'.
Experts are excited by the find because other than the effects of sea life, such as barnacles, coral and marine life, it is largely intact.
The main undercarriage tyres remain inflated.
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Ms Leadsom has received the backing of Ian Duncan Smith, the former work and pensions secretary.
"This was mindless vandalism at its very worst, which has wrecked a much-loved community facility."
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