File:Coupe.escalier.Louvre.png

...Une coupe, fig. 11, faite sur la ligne CB, explique les révolutions des rampes et les divers paliers de plain-pied avec les étages du logis B. Elle nous indique la structure du noyau ajouré, et, en K, le niveau du dernier palier de la grande vis, à partir duquel commence à monter la petite vis portant quarante et une marches jusqu'au niveau de la terrasse supérieure...

This image comes from Dictionary of French Architecture from 11th to 16th Century (1856) by Eugène Viollet-le-Duc (1814-1879).

	This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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