25 MAY 1906: BOCAUE, BULACAN to MALOLOS, BULACAN
Province of Bulacan single rated official mail, 1/2 ounce weight,  with 1c Franklin handstamped red O.B.,
supplied by the Philippine Constabulary. Backstamped MALOLOS on the same day.

28 AUGUST 1906: TACLOBAN, LEYTE to MANILA
1 ounce double rated official mail from the Philippine Constabulary with 1904 2c Washington
with red O.B. Backstamped MANILA / AUG 31.

2c WASHINGTON TYPE I RED O.B. EXTREMELY SCARCE ON COVER


7 OCTOBER 1906: NUEVA CACERES, CAMARINES  to MANILA
Dispatched with 2c Rizal "PHILIPPINE ISLANDS" issue of 1906 with red manuscript "OB".
Treated as 1 ounce double weight, 1c Postage Dues (without penalty) paid with 1c Franklin 1903 issue
with red O.B. Backstamped MANILA / OCT 13.

UNIQUE COMBINATION OF THE TWO ISSUES

Frame 3 / Page 42
P-31
P-32
P-33
P-34
P-35
P-36
P-37
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P-39
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P-43
< Type I Small O.B. in Purple
Type II Iloilo Marking #1 >