| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) |
Attest |
Scott |
5 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Sonstiges |
Stanley Gibbons |
5 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| Vincent Graves Greene, Philatelic Research Foundation (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| Von der Weid, Alain, Marchand, Jean-Claude (Prüferkommission) |
Attest |
Zumstein |
5 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
5 |
