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Presumably the crane was built as a block-setting crane for construction and repair of the breakwater itself. It is common for such cranes to be left in place afterwards. Was it ever used as a port crane, for freight handling? This would be unusual - such large cranes, especially when steam powered, where too inconvenient to last much past WWII and were nearly always ignored or replaced by electric cranes or road mobile cranes. Andy Dingley (talk) 14:35, 6 January 2014 (UTC)