This is one of a collection of promotional films made by the large crane manufacturers, Priestman Brothers of Hull.  This film focuses on their dredging machines. Title - Dredging the Priestman System Presented by Priestman Brothers Limited Commentator, Colin Doran  The film begins showing a dredging machine in action, and then the operation is demonstrated using diagrams.  This is followed by some film inside the factory showing men at work. Then the Panurgic II and Trisantona boats can be...

This is one of a collection of promotional films made by the large crane manufacturers, Priestman Brothers of Hull.  This film focuses on their dredging machines. Title - Dredging the Priestman System Presented by Priestman Brothers Limited Commentator, Colin Doran  The film begins showing a dredging machine in action, and then the operation is demonstrated using diagrams.  This is followed by some film inside the factory showing men at work. Then the Panurgic II and Trisantona boats can be seen working on a river.  There is dredging in the Firth of Forth and the City of London Docks and the Port of Liverpool, with maps showing their location. Title – Produced by Michael Shaw Gordon Swindell, Camera