A farewell to the EL train and the industrial monument the railway bridge 'De Hef' where Joris Ivens realized his 'study of mechanical movement' in 1928.A farewell to the EL train and the industrial monument the railway bridge 'De Hef' where Joris Ivens realized his 'study of mechanical movement' in 1928.A farewell to the EL train and the industrial monument the railway bridge 'De Hef' where Joris Ivens realized his 'study of mechanical movement' in 1928.