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27 FEBRUARY 1906: DUMAGUETE, NEGROS to MANILA Double rated Constabulary official mail, 1 ounce maximum weight, with black Type VIII O.B. on 2c Washington. Backstamped MANILA / MAR 5. EARLIEST RECORDED USE OF SMALL TYPE VIII BLACK O.B. |
23 NOVEMBER 1906: BONTOC, BONTOC & LEPANTO to MANILA With 1c Franklin for 1/2 ounce single weight, handstamped with black O.B. Backstamped MANILA / DEC 8. LATEST RECORDED USE OF SMALL TYPE VIII BLACK O.B. |
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