23-06-1971 Shipyard workers march out of Upper Clyde Shipyards, Glasgow to join a march of 80,000 trades union members opposing the threatened closure of the yards. They later occupied the yards in a 'work-in',... © Martin Mayer

16-06-1971 Upper Clyde Shipyards workers protest in London against the closure of their yards and against the Heath government © NLA

16-06-1971 Heath Out. Upper Clyde Shipyards workers protest in London against the closure of their yards and agianst the Heath government © Martin Mayer

23-06-1971 Upper Clyde Shipyards: Young mothers amongst onlookers at a march of 80,000 trades union members opposing the threatened closure, Glagow © Martin Mayer

23-06-1971 Young shipyard workers march out of Upper Clyde Shipyards, Glasgow 1971 to join a march of 80,000 trades union members opposing the threatened closure of the yards. They occupied the yards in a work-i... © Martin Mayer

23-06-1971 Shipyard workers from Upper Clyde Shipyards, Glasgow join a march of 80,000 trades union members opposing the threatened closure of the yards. They later occupied the yards in a 'work-in', which saved... © Martin Mayer

23-06-1971 Shipyard workers from Upper Clyde Shipyards, Glasgow talk to one of their leaders, Jimmy Airlie, after a march and rally of 80,000 trades union members opposing the threatened closure of the yards. Th... © Martin Mayer

08-08-1971 James (Jimmy) Airlie, one of the leaders of the Upper Clyde Shipyards workers speaking after the decision of Govan Shipyard (part of UCS) workers, to occupy the yard in a work-in. © Martin Mayer

08-08-1971 Govan shipyard workers (UCS) mass meeting to decide on occupation or work-in at the yard to fight closure © Martin Mayer

08-08-1971 The Scott Lithgow shipyard towers over the local church and housing in Port Glasgow © Martin Mayer

08-08-1971 Young shipyard workers at Govan Shipyards, Glasgow, part of Upper Clyde Shipyards, after vote to occupy yard in a 'work-in' to fight threatened closure © Martin Mayer

09-08-1971 One of the Upper Clyde Shipyards workers leaders Jimmy Reid addressing a meeting of Scottish shop stewards about UCS, Glagow, Scotland © NLA

09-08-1971 One of the Upper Clyde Shipyards workers leaders Jimmy Reid addressing a meeting of Scottish shop stewards about UCS, Glagow, Scotland © NLA

18-08-1971 Leading a march in Glasgow in support of the Upper Clyde Shipyards workers - TUC Gen Sec Vic Feather (L), Labour MPs Stan Orme (2nd from left) and Tony Benn (2nd from right) AEU Gen Sec Hugh Scanlon (... © Martin Mayer

18-08-1971 Apprentices from Upper Clyde Shipyards on a demonstration in Glasgow against the threatened closure of the company. © Martin Mayer

29-09-1971 Upper Clyde Shipyards workers leaders Jimmy Airlie (L speaking) and Jimmy Reid outside parliament before meeting with MPs © NLA

09-08-1971 A new crane in operation at the Scott Lithgow shipyard, Port Glasgow, at the time of the Upper Clyde Shipyard crisis © Martin Mayer

23-07-1971 Among those leading a mass march of shipyard workers and 80,000 trades union members through Glasgow to oppose the threatened closure of Upper Clyde Shipyards are UCS leaders Jimmy Airlie (3rd from le... © Martin Mayer

08-08-1970 Workers at Govan shipyards, Part of Upper Clyde Shipyards, Glasgow, Scotland, begin an occupation or 'work-in' at their yard to oppose its closure © Martin Mayer

23-06-1970 Shipyard workers from Upper Clyde Shipbuilders, Glasgow joined in a march and rally by 80,000 trades union members opposing the threatened closure of the yards. They later occupied the yards in a work... © Martin Mayer

23-06-1970 Upper Clyde Shipbuilders workers, Glasgow A march and rally of 80,000 trades union members opposing the threatened closure of the yards. They later occupied the yards in a 'work-in', which saved some... © Martin Mayer

23-06-1971 Workers at John Brown Engineering, Upper Clyde Shipyards, during the work in 1971 © Martin Mayer

23-06-1971 Work in, Upper Clyde Shipyards, Glasgow 1971 © Martin Mayer

23-06-1971 Workers at John Brown Engineering, Upper Clyde Shipyards, during the work in 1971 © Martin Mayer

23-06-1971 Work in, Upper Clyde Shipyards, Glasgow 1971 © Martin Mayer

23-06-1971 Work in, Upper Clyde Shipyards, Glasgow 1971 © Martin Mayer

23-06-1971 Work in, Upper Clyde Shipyards, Glasgow 1971 © Martin Mayer

23-06-1971 Work in, Upper Clyde Shipyards, Glasgow 1971 © Martin Mayer

23-06-1971 Work in, Upper Clyde Shipyards, Glasgow 1971 © Martin Mayer

23-06-1971 Work in, Upper Clyde Shipyards, Glasgow 1971 © Martin Mayer

23-06-1971 Work in, Upper Clyde Shipyards, Glasgow 1971 © Martin Mayer

23-06-1971 Work in, Upper Clyde Shipyards, Glasgow 1971 © Martin Mayer

23-06-1971 Work in, Upper Clyde Shipyards, Glasgow 1971 © Martin Mayer