Provenance: The Purple Shop – The Anthony Gardner Collection.
See Bellmans website article for further information: https://www.bellmans.co.uk/story/the-purple-shop-the-anthony-gardner-collection
A similar single lamp with shade was sold by Fontaine's Auctioneers, MA, USA, 17 November 2012, hence our attribution as possibly by Duffner & Kimberly.
UPDATED Condition report:
These two lamps have probably been matched together to make a pair. They have different fittings to the bulb heads and a slightly different metal colour.
The bases: with inevitable scuffs, scratches, dents and marks commensurate with wear, use and age. Tarnishing and dirt.
The wiring has been replaced and no loner with original sockets or components. One lamp retains its turning switches at the top as part of the actual bulb socket (see image), but the other lamp doesn’t and these are slightly different fitments - see images.
The bases are also slightly different colours, with one retaining a brassy lacquer and other with a more visible copper content.
The shades: with inevitable small hairline cracks to the different sections in areas, side images. Otherwise general irregularities as is the nature of the glass technique. Other areas of dirt, scuffs and scratches. One section around the top is missing one lamp.