Whoever thought of sending battle-scarred tanks to towns in Britain during 1917/1918 to sell National War Bonds was inspired. Merthyr alone raised £1m when 2 tanks – 'Julian' and 'Julian Junior' – visited for 3 days in June 1918. Nothing was safer than the tank bank, the public were told, but the borough's Director of Education refused to permit school closures over the period, fearing squashing incidents if children were roaming free. Viewers will appreciate his caution.