Individually Handstamped in Violet or Red Stamped Pad Ink on 1899 - 1903 Issues.
Period atfer “O” and “B” and Long Serif on "B". Consistenly stamped in a diagonal position

Local Type used  by the Philippine Constabulary only in Cuyo, Palawan from July to August 1906.


Size: 12.5 x 4.4 mm

4 AUGUST 1906: CUYO, PALAWAN to MANILA
Single rated official mail with 1c 1903 Franklin handstamped with red "O.B."
Backstamped MANILA / AUG 13.

ONLY SIX COVERS RECORDED FROM CUYO, PALAWAN


19 APRIL 1906: CUYO, PALAWAN to MANILA
Double rated official mail with 2c 1903 Washington handstamped with violet "O.B."
Frame 6 / Page 90
P-89
P-90
< Type XI Small O.B.
Type XIII Small O.B. >