The school's Head of History, Susan Casey, says it is a remarkable find.
She is hoping money can be raised to conserve the shelter and turning it into a teaching facility.
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42-year-old Barry Solomon was found dead at an address in Kemble Square on Saturday night.
The Red Arrows have taken to the skies across the county today as one of the final training exercises in the UK before they head to Greece
Defender Matthew Bates is in charge for the final two games for Hartlepool to try and halt their slide out of the Football League