1937 Baguio - Argentina Mixed Franking
Registered Flown Cover
Routing: BAGUIO - MANILA - HONOLULU - SAN FRANCISCO - BUENOS AIRES - MANILA - BAGUIO. Postmarks on this cover are:

Front & Back REGISTERED / BAGUIO / MOUNTAIN / FEB 18
REGISTRY SECTION / MANILA / FEB 19
HONOLULU / HAWAII / FEB 28
SAN FRANCISCO / MAR 8
2 BUENOS AIRES POSTMARKS ON VERSO, one on return postage.
REGISTRY SECTION / MANILA / MAY 8
REGISTERED / BAGUIO / MOUNTAIN / MAY 9

1p-40c postage indicated on front for 20c Air Mail Rate from Baguio to Manila via INAEC - PATCO; 20c Registration Fee and the minimum 1p Outbound Air Mail Rate at 15 grams maximum weight.