The portrait, in watercolour, is a rare early work (1933) by Michael Rothenstein, who knew the pair well in the 1930s and would later establish himself as a major part of the small community of artists at Great Bardfield - the Essex village made famous by Ravilious and Bawden.

This important discovery was unveiled at the Watercolours and Works on Paper Fair earlier this year. Sim Fine Art are currently exhibiting at Art Antiques London in Hyde Park (13-20 June)

The National Portrait Gallery's website can be found here: http://www.npg.org.uk/collections/search/person/mp69185/eric-ravilious?search=sas&sText=ravilious