Description: BBC 2 - Great British Railway Journeys - Series 3 TX 4 (Journey 2 Episode 4, 02-12-2012) - Epping to Hackney. Copyright of talkbackTHAMES. DISTRIBUTION OF THIS MATERIAL IS STRICTLY PROHIBITED. Private Use Only. 20-21 Newman Street, London wn 1 PG, United Kingdom. www.talkbackthames.tv Part of Fremantle Media. Michael Portillo visits Waltham Cross to see how the gunpowder made there fuelled the building of an empire.
