18 AUGUST 1906: SAN FERNANDO, PAMPANGA to SAN ISIDRO, NUEVA ECIJA,  Department of Justice registered official mail, single rated with 1c x 4 Franklins and 5c Lincoln all with large blue O.B. (1c + 8c registry fee). Backstamped SAN ISIDRO / AUG 20.

1 NOVEMBER 1906: SANTA CRUZ, LAGUNA to MANILA Department of Justice official mail 4c rated for 2 ounces weight, with 2c x 2 Washington 1904 issue, handstamped with large blue O.B. Backstamped MANILA / NOV 2.

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