FDC, 6.5 x 3.5, honoring United Nations Human Rights Day, December 10, 1958, signed 'Herbert Hoover' in blue fountain pen. Postmarked United Nations, New York, December 10, 1958. Accompanied by a letter on Hoover's personal stationery from his secretary to Mr. Brown, who requested the signature on the FDC. In fine condition. RRAuction COA.
