Air Letters / Aerogrammes
1956 -
1959 Issues
Shades
1956, December 21. 50c Airplane Flying Over Mayon Volcano, Blue (shades) on Light greenish-blue (shades). AEROGRAMME / (AIRGRAM) with "*Philippine Foreign Airmail*" Overlay. Philippine Bureau of Printing. (1,000,000)
Overprint Color Varieties
1958, April 9. 50c
Surcharge Over 1954 30c Airplane (Facing to the Left), Red on light
blue; Red on greenish-blue.
Overprinted in Blue "BATAAN DAY, APRIL 9, 1958".
AEROGRAMME / AIR LETTER with "*Philippine Foreign Airmail*"
Overlay. Philippine Bureau
of Printing. (400,000).
Color Varieties of BATAAN overprint:
Dark Blue and Light Blue.
Paper Varieties
1959, October 21. 50c Airplane Flying Over Mayon Volcano, Blue on Light greenish-blue on Glossy, Glazed Paper. AEROGRAMME / (AIRGRAM) with "*Philippine Foreign Airmail*" Overlay. Paper Types: Lightly Glazed, Heavily Glazed. (300,000)