| Brettl, Schmitt (Prüferkommission) |
Attest |
Michel |
9 |
| CEM, Comision de Expertos de Madrid (Prüferkommission) |
Attest |
Edifil |
9 |
| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Michel |
9 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
9 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Yvert et Tellier |
9 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Michel |
9 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) |
Attest |
Scott |
9 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
9 |
