1938 - 1941 Official Mail

1941 AUGUST 4: MANILA to MALOLOS, BULACAN
37.0 x 26.0 cm Bureau of Education extra large envelope with 1935 4c O.B. x 12 (#O16)
for 48c First Class Domestic Rate, 480 grams maximum weight (20 grams per 2 centavos).

EXTREMELY SCARCE MULTIPLE USE OF O.B. ISSUE

1938 FEBRUARY 7: MANILA to MALOLOS, BULACAN
30.0 x 23.0 cm Office of the President large envelope with 1935 12c and 20c
and 1937 2c O.B. issues for 34c Third Class Domestic Rate per "PRINTED MATTER"
endorsement, paying 2 centavos per 60 grams weight or  20 centavos for first 600 grams
and another 10c for the weight above 600 grams (2 centavos overpaid).

EXTREMELY SCARCE THREE COLOR O.B. FRANKING