Errors, Freaks & Oddities (EFOs)
- Others
- Multiple EFOs per issue
EFO Catalog
1990. 1p Legion of Mary, 50th Anniversary issue.
With vertical perforations shifted to the right, dramatically. Pair.
1977. 2p20 World Law Conference issue. With Horizontal perforations shifted downwards, slanted, each stamp with different degree of shift.
1980. 2p30 Gen. Douglas MacArthur Birth Centenary issue. With Horizontal perforations shifted downwards, slanted.
1981. 40s International Red Cross 24th Conference issue. With Horizontal perforations shifted downwards, slanted
1982. 40s Children's Museum and Library, Inc. (CMLI), 25th Anniversary issue.
With Horizontal perforations shifted downwards, slanted.
Pair, each stamp with different degree of shift
1982. 40s Isabelo delos Reyes definitive issue. With Horizontal perforations
shifted, slanted, each stamp with a different degree of shift.