Opened on 1 December, 1899
MIL. STA. ZAMBOANGA / 
PHIL. ISLES.
Cirular Duplex in Violet

Period of Use:
5 January, 1900 to 13 February, 1901

ZAMBOANGA to RHODE ISLAND             20 JANUARY, 1900
ZAMBOANGA CIVIL POST

Philippine Postal Service /
Date
Zamboanga, Mindanao
3 Purple Straight Line Handstamp in Script


Period of Use:
1 December, 1899 to Early January 1900

ONLY TWO COVERS KNOWN

Not Recorded by Goodale

ZAMBOANGA to INDIANA         21 DECEMBER, 1899
For unexplained reasons, the Zamboanga Military Postal
Station was initially placed under civilian control
during the first few weeks of operation. 
The U.S. Military took full control only on 5 January, 1900.

Ex F. W. Lange Collection