| Von der Weid, Alain, Marchand, Jean-Claude (Prüferkommission) |
Attest |
Zumstein |
6 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) |
Attest |
Scott |
6 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
6 |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
6 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Yvert et Tellier |
6 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
6 |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
6 |
| CEM, Comision de Expertos de Madrid (Prüferkommission) |
Attest |
Edifil |
6 |
