Rare WAS Benson copper shade table lamp

Rare Arts & Crafts very well patinated copper and brass table reading lamp by WAS Benson c1895.
Converted to electricity for UK use. Adjustable copper reflector shade, the whole on quadruped stylized feet.
For reference see page 106 of the WAS Benson book.
A brass version was also shown at the Arts & Crafts Metalwork exhibition held at Blackwell in 2003, cat no. 17 on page 16 of the accompanying catalogue. c1900.
Overall height approx 17".