PHILIPPINES, 1936, May 29 - First Flight, Manila and Laoag Ilocos to Madrid, via Hong Kong (AAMC 115B, 115Bb, 115Bc).
Three covers, one each from Manila and Laoag Ilocos to Madrid via Hong Kong with 25c added, Madrid backstamps, third from Laoag Ilocos to Hong Kong, proper violet cachets, each signed by both pilots - Arniaz and Calvo,
central file folds not affecting stamps, otherwise Very Fine, 500 covers flown - 300 from Manila and 200 from Laoag, 80 of which were reposted from Hong Kong
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