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![Studying aeroplane [i.e. airplane] rudder, 1917 or 1918. Creator: Bain News Service.](https://d21cmcylgnyv91.cloudfront.net/28Ei1cjBV0KMwp18w5zqhr9rsfM=/fit-in/224x/3010914.jpg "Studying aeroplane [i.e. airplane] rudder, 1917 or 1918. Creator: Bain News Service.")
![Women working on propeller, Eng. [i.e. England], between c1915 and 1917. Creator: Bain News Service.](https://d21cmcylgnyv91.cloudfront.net/UcIfA-TG8BXQ6z6jbd44fEOrpjk=/fit-in/224x/3010925.jpg "Women working on propeller, Eng. [i.e. England], between c1915 and 1917. Creator: Bain News Service.")
![Woman blacksmith, Eng. [i.e. England], between c1915 and 1917. Creator: Bain News Service.](https://d21cmcylgnyv91.cloudfront.net/IyFS1TUW6VCED7mwHPQipsIyRvs=/fit-in/224x/3010926.jpg "Woman blacksmith, Eng. [i.e. England], between c1915 and 1917. Creator: Bain News Service.")
