Hawaii, 1899, 1¢ dark green, horizontal pair. Tied by purple "Kekaha, Kauai, Dec 9, 1899" cds (MH 253.04) on Hawaiian picture postcard with "High School, Honolulu" scene, to Hamburg, Germany with "Honolulu, Dec 10, 1899" duplex transit and receiving postmark at left, Very Fine, a rare postcard usage from Kekaha, Kauai. Scott No. 80  Estimate $750 - 1,000. $0 (Image)