| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) |
Attest |
Scott |
23 |
| Crowe, William T. (Sonstiges) |
Attest |
Scott |
23 |
| Mikulski, Zbigniew S. (AIEP (Association internationale des experts en philatélie)) |
Attest |
Scott |
23 b |
| Moorhouse, Brian (Sonstiges) |
Attest |
Scott |
23, 24, 53 |
| Bakker, Th. C. (Sonstiges) |
Attest |
Scott |
23; 29; 40 - 43 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
230 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
231 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
231 |
