A painting that was missing for almost a century is expected to fetch a six-figure sum at auction when it is offered for sale alongside work by some of the biggest names in 20th century British art.

John Duncan Fergusson's painting, Poise, had not been seen since it was exhibited in London in 1918 until it was was found by its present owners, a brother and sister, who were clearing the attic of their home.

The work, by the experimental Scottish painter, dates back to 1916 and is valued at around £120,000.

It will be offered for sale in the Modern British and Irish art sale at Christie's in central London next month.

Also included in the sale are several works by sculptor Henry Moore, including a maquette for Curved Mother And Child which was previously owned by Oscar-winning actress Lauren Bacall and is valued at £120,000.