Hawaii, Department of Foreign Affairs. Corner card cover to Secretary of State in Concord, N.H. franked with 1896 5¢ Official tied by "Honolulu, H.I., Jul 20, 1899" duplex postmark, "San Francisco" transit and receiving backstamps, Extremely Fine, a rare consular mail usage after the annexation of Hawaii. Scott No. O2  Estimate $500 - 750. $0 (Image)