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Double Split OB a |
Triple OB a |
One Inverted / Split |
Broken B a |
Shifted OB To the Left |
Shifted OB To the Right |
Inverted OB aa |
Broken B Carmine |
Shifted Very High |
Slanted OB a |
Shifted OB a |
Shifted OB a |
Double OB |
10c Offset Positions 1 and 2 |
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Double OB on Blue and Dark Blue |
1910 MARCH 30: MANILA to CATBALOGAN, SAMAR 2c Rizal Second Overprinting OB on 4c McKinely official envelope for 6c triple domestic rate. |
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