Philippines, 1936 Manila - Madrid first flight. Cover addressed to Madrid, franked with 1935, 16c dark blue tied by "Manila, May 29, 1936" cds duplex, flown to Hong Kong with "Victoria, Hong Kong, My 29" transit backstamp, purple cockbird flight cachet handstamp, Very Fine, very scarce with only a few covers are reported to carried; with 2008 A.P.S. certificate. AAMC No. 1260. Estimate  $150 - 200. $0 (Image)