Lot
2760 
Philippines, 1931, 4c carmine rose, imperf, block of four, tied by purple "Via U.S. Army Corps, First Flight, Philippines, May 6, 1932" cds on Dansalan - Fort Stotsenburg first flight cover (AAMC 81), Dansalan duplex and receiving backstamp, Very Fine, rare with only 22 flown. Scott No. 341 Estimate $200 - 300.