Cyfernod / Ref NoCP80/4/2/10/1-2
Teitl / TitleCONSTRUCTION OF THE COFFER DAM
Ddisgrifiad / DescriptionThe coffer dam is a watertight enclosure, pumped dry to permit construction work below the waterline when building bridges or repairing a ship. [2 images]
Dyddiad / Date1955 Dec
Graddau / Extent2 items
Lefel / LevelItem
Ddelweddau / Image

93\2e2f7d-7357-463c-b070-bfaab0245749.jpg

29\747f15-20b0-4655-8065-63dcc035400b.jpg

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