| Vincent Graves Greene, Philatelic Research Foundation (Prüferkommission) |
Attest |
Scott |
10 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
10 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
10 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
10 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
10 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
10 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
10 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
10 |
