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
2

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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