1925 FIRST INTER-ISLAND AIRMAIL SERVICE
50th ANNIVERSARY FLIGHTS
MANILA to TWELVE DIFFERENT PHILIPPINE CITIES

Flown on different dates with commemorative covers
all postmarked MANILA / PHILIPPINES / DEC 1 1975


RP-84: MANILA to NEW WASHINGTON, AKLAN
NEW WASHINGTON, AKLAN * PHILIPPINES / RECEIVED / 
DEC 8 1975

RP-85: MANILA to ROMBLON, ROMBLON
ROMBLON, ROMBLON, PHIL / 1064 / DEC 5 1975
a

RP-86: MANILA to SAN JOSE, OCC. MINDORO
SAN JOSE, OCCIDENTAL MINDORO / PHILIPPINES / 
RECEIVED / DEC 4 1975

RP-87: MANILA to SURIGAO CITY
SURIGAO, SURIGAO DEL NORTE * PHILIPPINES / 
RECEIVED / DEC 3 1975

RP-88: MANILA to TACLOBAN CITY
TACLOBAN CITY * PHILIPPINES / RECEIVED / DEC 4 1975

RP-89: MANILA to ZAMBOANGA CITY
ZAMBOANGA CITY * PHILIPPINES / RECEIVED / DEC 3 1975