A painting by world-renowned artist John Constable depicting a mill at Brantham has sold at auction for a total of £91,000.

Thought to be the most easterly view of Dedham Vale Constable ever sketched, the newly-discovered painting includes the windmill owned by his father Golding Constable.

Experts had previously dismissed the work, painted in 1809-10, as a copy and it had hung in a London townhouse for many years before an an auctioneer from Sworders discovered its true value.

Pictures specialist Sarah Flynn took it to Anne Lyles, a renowned authority on the art of John Constable and she declared it an exciting discovery.

"It is the dream of every auctioneer to discover a picture by one of the greats of Western art," said Sarah.

"Dedham Vale is intimately associated with Constable's life, but the inclusion of one of his father's mills in this picture makes it a particularly personal image."

The most famous work by Constable of the panorama is the picture titled Dedham Vale, Morning, which he exhibited at the Royal Academy in 1811.

It went under the hammer at an auction last week with a guide price of £100,000 to £150,000 and eventually sold for £91,000, which includes the buyer's premium.

Paintings by Constable have previously fetched millions of pounds at London-based auction house Christie's.

In 2012, an oil painting called The Lock brought in £22,441,250, while View On The Stour which is based on an area near Dedham sold for £14,082,500 four years later.