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Amgueddfa Cymru – Museum Wales
Headline of newsletter ( No. 4 Summer 1977) is 'World's Fastest Diesel Service'. Other articles are centred around the Inter-City 125 e.g. 'Latest Coach Design', 'Jubilee boost for Windsor', 'Natural Step in High Speed Quest', 'Regular Maintenance Programme', 'Modern Signalling aids High Speed' and 'On the right tracks'. Also included are timetable, service line and 3 coloured photos (1 showing the Inter-City 125) and 6 b & w photos.