11 JULY 1906: TAAL, BATANGAS to MANILA Dispatch single rated official mail with unmarked 1c Franklin. Charged 2c Dues as rated 1 ounce double weight, paid with 1904 2c Washington with blue O.B. Backstamped BATANGAS, BATANGAS on same day and MANILA / JUL 13. 8 JUNE 1906: BALANGA, BATAAN to MANILA Official mail endorsed "Personal" and the use of 1c Franklin with inverted "O.B." deemed improper. Backstamped MANILA / JUN 9.

Large O.B.

Blue-1

Blue-2

Blue-3

Blue-4

Blue-5

Blue-6

Blue-7

Blue-8

Blue-9

Red O.B.

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