No designer directly attributed to this design, but we can safely say this is a 1950s midcentury Cobra-style table lamp.
According to the seller, it is in the Greta Grossman, with a 'very unusual oblong biomorphic shade', along with a Bauhaus-inspired adjustable gooseneck plus a switch on the base.
The lamp is described as being in 'good original' condition and in full working order with 'very light wear'. It will be delivered with a UK or USA plug, should you want either.
The price right now is £6.49.
Find out more at the eBay website