Philippine 1917 2c Rizal (290), 6c Magellan (292) & 8c Legaspi (293) tied by diminutive air plane cancels on First Inter-Island Air Mail Service. U.S. Army Survey Flight #7e (old #8a) of southern islands from Manila, 11-20-25, to Cebu, 12-3, receiver. Also with Special cachet types 8. Very Scarce flight, Only 29 letters carried! Fresh & Very Fine cover with minor vertical crease.