| Golfarini, Juan A. (Sonstiges) |
Attest |
Scott |
9 a |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
9 a |
| Scheller, Pascal (Sonstiges) |
Attest |
Scott |
9 X 1 |
| PSAG (Philatelic Stamp, Authetication and Grading) (Prüferkommission) |
Attest |
Scott |
9 X 1 |
| PSAG (Philatelic Stamp, Authetication and Grading) (Prüferkommission) |
Attest |
Scott |
9 X 1 e |
| Cohen Sabban, Albert (AIEP (Association internationale des experts en philatélie)) |
Attest |
Scott |
9; 10 |
| Gratton, Richard (AIEP (Association internationale des experts en philatélie)) |
Attest |
Scott |
924 c |
| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Scott |
93 |
