Great Britain. Air Ministry]]> IBCC Digital Archive]]> Laura Morgan]]> eng]]> Text]]> Text. Correspondence]]> EAirMinArrowssmithHP440528-0002]]> Royal Air Force]]> Royal Air Force. Bomber Command]]> Great Britain]]> Germany]]> Germany--Duisburg]]> Germany--Ruhr (Region)]]> 1944-05-21]]> 1944-05-22]]>