Davart was a high-end manufacturer of electric lamps in the 1930s and 1940s in New york City. They worked with pottery and porcelain parts supplied by a number of different manufacturers, but their closest ties were with the Lenox china Co of Trenton, NJ, whose lead designer created parts specifically for use in Davart lamps.
This is an example of those parts: an ovoid, almost bottle-form ribbed body, with an narrow neck at each end, set into metal parts at top and bottom. It's a great example of American Art Moderne or Streamline style from the 1930s.
The Lenox parts are 9" tall. The lamp is 21.5" overall.
Condition: fine, no wear or damage.
Mark: Davart triangle logo mold mark on the underside of the foot. I've unbolted the lamp and there's no Lenox mark on the porcelain, but there's also no place for such a mark to have been applied, as the bottom end is so small. Davart didn't buy porcelain parts from anyone else, so it has to be from Lenox.
This lamp does come with the shade shown in the pictures; it's not original to the lamp (or at least the cloth isn't), but it looks good on it and it's an high-quality, double-walled shade. The shade is 13.5" by 12" by 9.5" tall.
Item ID: 3818