Antioquia 1899 Mi. nos. 106-116 proofs, imperfs and imperf between pairs about 65 ex.(Image 1) (Image 2)

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shifted centre, perf. errors, imperfs, inverted overprints and colour proof 16 items on stockcards(Image 1) (Image)

Antioquia Study with reference material on the 1899 Mi. nos. 106-116 and registration stamps. including perfs and paper types, imperfs etc. in album(Image 1) (Image 2) (Image 3) (Image 4) (Image 5) (Image 6) (Image 7) (Image 8) (Image 9) (Image 10)

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