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Detail of a Class 120 DMU

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Details

An image (14 of 24) from a British Transport Films Filmstrip named "Coupling Procedure Diesel Multiple Unit Trains" probably taken at Bristol Marsh Junction circa early 1971.

Described as "Star valve on air pipe. Star valve must move easily, if it does not air must be expelled from the pipe before coupling of air pipes can be completed."


Class 120
Unknown

British Transport Films
413

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