Newscopy: "SAN FRANCISCO, DEC. 17 - WORLD'S LARGEST CRANE LIFTS 630 TONS--A concrete, steel and lead slab of approximately 630 tons is lifted into the air at Hunter's Point Naval shipyards here today as the world's newest and most powerful crane undergoes lifting test here today. Shipyard Commander Capt. Philip Lemler said it was the 'heaviest lift ever made by man.'".