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1913 APRIL 29: MANILA to BAGUIO 2c Rizal green on oriental buff PSE, Philippine Constabulary return address added 2c and 20c OB fpr 4c double registered rate. |
1914 JUNE 6: MANILA to CATBALOGAN, SAMAR 2c Rizal green on amber Constabulary envelope with added 10c and 20c Special Delivery OB issues for 12c postage (6 ties rate) via Special Delivery. |
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