I know nothing about this, I'd appreciate some help. Am guessing it had something to do with the RAF going by the names on the top. It's approx 30ft x 10 ft, roughly 60/40 split into two rooms each with a roof vent. Larger room has a trap door in the roof at one end. Outside to the left of the doorway looks to be to remains of a door or window but its at ground level so not sure what its for. also on the roof are about 10 metals plate about 4 inch square.
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