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11 AUGUST 1906: MANILA to SAN ISIDRO, NUEVA ECIJA Black O.B. on 2c Washington 1904 issue mixed with 1c Franklin with red O.B. |
2 APRIL 1906: SAN ISIDRO, NUEVA ECIJA to MANILA Black O.B. on 2c x 2 Washington 1903 issue mixed with Type I red O.B. on 1c Franklin. |
8 MARCH 1906: DAGUPAN, PANGASINAN to MANILA Black O.B. on 2c Washington 1899 issue mixed with 1c Franklin with Type I red O.B. |
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