30 JANUARY 1907: DAGUPAN, PANGASINAN to MANILA
2c Washington carmine on 1901 oriental buff pse with SOUTH / R.P.O. Rail Mail Service
postmark. Backstamped Manila on the same day.

THE ONLY RECORDED ENCIRCLED OB ON POSTAL ENVELOPE 


25 FEBRUARY 1907: MALOLOS, BULACAN to MANILA
Double rated official mail, 1 ounce weight, with 1903 1c x 2 blue green Franklin.
Backstamped MANILA on same day.

THE ONLY RECORDED STAMP ISSUE AND COVER WITH ENCIRCLED OB

Frame 9 / Page 137
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