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Spies uncovered in Horrible Histories exhibition

29 July 2013 Last updated at 10:08 BST

Curator Amanda Mason shows off some of the highlights of a new interactive exhibition about World War II spies at the Imperial War Museum (IWM), which is based on the children's book and television series Horrible Histories.

Among the exhibits on display are items from IWM's World War II collections, including gadgets such as a tear-gas fountain pen. The pen, and a tyre-slasher, were used by Tommy Yeo-Thomas, who was one of the most famous agents from the Special Operations Executive (SOE).

Video journalist: Tom Beal

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