The New Zealand Railways Magazine, Volume 4, Issue 3 (July 1, 1929)
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The enterprise of the British Railways in the field of electrification and in the adoption of modern scientific methods in train signalling, gives them a premier place amongst the railways of the world. Our special London Correspondent gives interesting particulars of the latest electrification and signalling installations, and makes passing reference to the first all-British railway fiction “talking” film featuring thrilling scenes on the famous “Flying Scotsman” Express.