FREIGHTER CONQUERS FROZEN ST. LAWRENCE RIVER Canada hails a pioneering maritime feat. The Danish freighter Helga Dan is the first ocean transport ever to challenge the frozen St. Lawrence and reach the port of Quebec City in mid-winter. Ships in icy water. Bow (?) of ship plowing through and breaking up the ice. Crew members perform various tasks including man using Morse Code key; man in uniform looking through binoculars. Ship at snowy dock.