| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
07 A a |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Michel |
1 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) |
Attest |
Scott |
1 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) |
Attest |
Scott |
1 |
| Friedl Expert Committee, (Prüferkommission) |
Attest |
Michel |
1 |
| Friedl Expert Committee, (Prüferkommission) |
Attest |
Scott |
1 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
1 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Stanley Gibbons |
1 |
