Sponsors advertisement for Longines watches shows a television announcer speaking about Longines watches. Gold medals won by the company. Longines watches on the revolving stand. Emblem of Longines Wittnauer watches company.
Announcer introduces the guest for the television program. William Bradford Huie and Donald I Rogers talk with General Lemuel C Shepherd, Junior, Commandant, U.S. Marine Corps on the effectiveness of the helicopter and armored vests in Korean War.
William Bradford Huie and Donald I Rogers talk with General Lemuel C Shepherd, Junior, Commandant, U.S. Marine Corps on comparison of North Korean troops and the Marine Corps during the Korean War. General Lemuel further talks about air support and casualties during war.
Sponsors advertisement of Longines watches shows an announcer speaking about Longines watches. Gold medals won by Longines watches. Emblem for Longines. Watches on the revolving stand. Announcer speaks.
Copper impurities remained after smelting removed by melting and electrolysis. Tank room of electrolytic refinery plant at Baltimore. The anodes placed in empty tank. Thin sheets of pure copper, serving as cathodes inserted between the anodes. The tank then filled with a dilute solution of copper sulphate. An electric current flows from the anode, through the solution, to the cathode on which pure copper is deposited. After removing the cathodes from remnants of anodes a sludge, into which the gold, silver and platinum has fallen, flushed out of the tank. Sludge melted by a worker into a bullion bar. The copper cathodes melted.
Pure copper caste in commercial shapes. Copper bars dumped from mold into cooling tank. Workers inspect the wire-bars. Various commercial shapes caste to meet particular requirements of copper fabrication.
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