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11 JANUARY 1906: PASIG, RIZAL to MANILA Province of Rizal official mail, the 1/2 ounce weight paid with 1c Franklin 1903 issue with purple O.B., stamp provided by the Philippine Constabulary. Backstamped MANILA the same day. THE EARLIEST RECORDED USE OF TYPE I PURPLE O.B. |
3 MARCH 1907: SAN ISIDRO, NUEVA ECIJA to MANILA Franked with 1c Franklin 1899 issue for 1/2 ounce weight. Backstamped MANILA / MAR 4. EXTREMELY SCARCE ISSUE WITH TYPE I PURPLE O.B. ON COVER |
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