Daventry building survives multiple detonation attempts
Archive video showed the Royal Marines struggling to blow up an engine shed at an old railway yard.
Despite using plastic explosive and gelignite, the building survived the first blast.
It was filmed at a former British Railways marshalling yard in Woodford Halse, near Daventry, in 1968.
Two more attempts were made to destroy the structure but it managed to survive 200lb (91kg) of explosives.
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