The secrets behind colourising old black and white images which have brought to life so many First World War pictures will be revealed at a special workshop open to the public tomorrow.

The Comet: A service being held on Armistice Day in 1919 or 1920 at the first war memorial in Letchworth. Credit: Colourised by Doug Banks of Colourising History in partnership with Herts at War.A service being held on Armistice Day in 1919 or 1920 at the first war memorial in Letchworth. Credit: Colourised by Doug Banks of Colourising History in partnership with Herts at War. (Image: Archant)

Members of the Colourising History group will be visiting the Herts at War exhibition space in Letchworth’s The Arcade, where they will be showcasing their work and speaking to the public about colourisation and demonstrating how it is achieved.

Anyone is invited to pop down between 1pm and 4pm to find out more.

For more information about the Herts at War project, visit www.hertsatwar.co.uk.