Lost Salvador Dalí painting bought for £150 sold at auction for £47,700

Illustration of old sultan' by surrealist artist found at a house clearance sale by Cambridge antiques dealer

To the untrained eye, it looks more like an alien has landed on Chewbacca's head than a masterpiece by Salvador Dali.

But the watercolour and felt-tip painting - bought two years ago for 150 - has been sold at auction for 47,700, after it was identified as a lost illustration of an old sultan" by the great surrealist artist.