10 JULY 1906: JAMIUAY, ILOILO  to MANILA Single rated Constabulary official mail, 1/2 ounce maximum weight, with red Type VIII O.B. on 1c Franklin. Backstamped ILOILO on the same day and MANILA / JUL 16.

24 AUGUST 1906: BACOLOD, NEGROS  to MANILA Triple rated Constabulary official mail, 1-1/2 ounces maximum weight, with red  O.B. on 3c Jackson 1899 issue. Backstamped MANILA / AUG 30.

13 SEPTEMBER 1906: PASIG, RIZAL to MANILA With red  Type VIII  O.B. on 1c Franklin. Backstamped MANILA  on the same day.

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