Art deco library lamp, reading light from the 20s

Library Lamp, Art Deco Reading Lamp, 20s. Unusual model, it is a reading lamp. It is placed on a shelf or a tall piece of furniture and is oriented to read. It is heavy so that it can remain still when oriented. It can of course be used as a side or bedside lamp. It is made of tin-plated metal, aluminum lampshade. Good condition except for wear and tear from use and time, oxidation of the tin (see photos) The twisted cable is original, I kept it because it is in good condition but I changed the switch and the plug. Dim: H: 25.5 cm L: 39 cm W: 13 cm.