£250m room was looted from palace of Peter the Great by the Nazis in 1941 . Consists of six tonnes of amber resin which took ten years to complete . Amber packed into 40 crates and shipped to Germany where they vanished . Its fate has captivated treasure hunters ever since it was first plundered . Now team of OAPs claim to have proof it is hidden under city of Wuppertal .
£250m room was looted from palace of Peter the Great by the Nazis in 1941 . Consists of six tonnes of amber resin which took ten years to complete . Amber packed into 27 crates and shipped to Germany where they vanished . Its fate has captivated treasure hunters ever since it was first plundered . Now team of OAPs claim to have proof it is hidden under city of Wuppertal .