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English: An illustration of the "Dowding System" of defensive air control, from a 1941 Air Ministry pamphlet. In the lower left is the overall control system at Fighter Command HQ at Bentley Priory, shown dis
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Original publication: Air Ministry pamphlet

Immediate source: http://ww2today.com/2nd-april-1941-the-battle-of-britain-defined
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UK Air Ministry

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nåværende9. jan. 2014 kl. 20:49Miniatyrbilde av versjonen fra 9. jan. 2014 kl. 20:49585 × 900 (181 KB)Maury Markowitz{{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|An illustration of the "Dowding System" of defensive air control, from a 1941 Air Ministry pamphlet.}} |Source = '''Original publication''': Air Ministry pamphlet<br/> '''Immed...

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