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Rogpow: Derelict building, National Explosives Company, Upton Towans
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Rogpow: Nitric Acid Factory interior, National Explosives Company, Upton Towans.
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Rogpow: Factory wall, National Explosives Company, Upton Towans
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Rogpow: Window and chimney, National Explosives Company, Upton Towans
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Rogpow: Chimney, National Explosives Company, Upton Towans