Hawaii, 1882, 5¢ ultramarine, on 1884, 5¢ blue entire to Bucharest, Romania, tied by "Honolulu, Hawaii, Jun 30, 1891" duplex cancels, reverse with San Francisco transit and receiving postmarks, C. Witt, N.Y.C. return corner card on backflap; stamp with tear at upper left, otherwise Very Fine, a very rare destination. Scott No. 39+U4  Estimate $500 - 750. $0 (Image)