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Friend or foe? This 1915 British public notice provides identifying silhouettes of German and British aircraft and airships, along with general advice as to what action to take during an air raid.
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Friend or foe? This 1915 British public notice provides identifying silhouettes of German and British aircraft and airships, along with general advice as to what action to take during an air raid.
British aircraft warning notice, URL: https://nzhistory.govt.nz/media/photo/british-public-notice, (Manatū Taonga — Ministry for Culture and Heritage), updated
