2026-09-28T04:36:53+01:00https://marinefinds.org.uk/datalabs/terminology/object/format/jsonhttps://marinefinds.org.uk/datalabs/terminology/object/format/xmlhttps://marinefinds.org.uk/datalabs/terminology/object2331131953PHOENIX CAISSONYA floatable concrete vessel, numbers of which made up the main breakwater of the Mulberry Harbours used to secure beachheads during the allied invasion of Europe in June 1944.143P9967100213PHOENIX CAISSONYA floatable concrete vessel, numbers of which made up the main breakwater of the Mulberry Harbours used to secure beachheads during the allied invasion of Europe in June 1944.1P