On 8 August 1963, a gang of thieves held up a British Royal Mail train on its journey from Glasgow to London.

They stole more than £2 million.

It was the biggest ever raid on a British train.

Most of the robbers ended up behind bars, but most of the money has never been recovered.

The robbery still occupies a unique place in the history of British crime.

In 2012 Chloe Hadjimatheou spoke to Reginald Abbiss who was a young BBC journalist who covered the story.

(Photo: The train involved in the robbery. Credit: Getty Images)