File:Decauville railway track at the top of the Eiffel Tower for the Mangin projectors.jpg
![File:Decauville railway track at the top of the Eiffel Tower for the Mangin projectors.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/8/8e/Decauville_railway_track_at_the_top_of_the_Eiffel_Tower_for_the_Mangin_projectors.jpg/765px-Decauville_railway_track_at_the_top_of_the_Eiffel_Tower_for_the_Mangin_projectors.jpg?20200808180041)
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