Shipbuilding. "Liberty" ships. A new vessel has just moved off these ways, and the keel is being assembled for yet another, in a large Eastern yard. The bottom and side shell plating and the inner tank sections are being assembled. Another new keel has been laid on the ways to the left. All parts are prefabricated in this huge Eastern plant which formerly turned out freight cars. The completed sections are then carried six miles to the ways on flat cars