Four trade-unionists from Nigeria, who are now in the United States under the auspices of the U.S. State Department, today visited the Headquarters of the United Nations, in New York. They are seen here with U.N. Under-Secretary Ralph J. Bunche, on whom they called during their visit. From left to right: N. A Cole; Franco Olygbake; Mr. Bunche; F.O. Porbeni; and Chief Beyioku.