Samoa, Island Mail. Tau, Manua Islands, American Samoa. Three-line postmark tying U.S. 3¢ Prexie on cover to Houston, Tx., Per M.V. Samoa and Red Cross imprint on backflap, pencil "1953" notation, Extremely Fine, an elusive postmark. Estimate  $50 - 75. A 1909 Tau postmark is known on a postcard and is reported to be unique. $0 (Image)