| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
3 + 497 |
| Gummesson, Rolf und Per (Prüferkommission) |
Attest |
Michel |
3 A |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
3 a |
| Friedl Expert Committee, (Prüferkommission) |
Attest |
Scott |
3 a |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Michel |
3 a |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
3 a |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
3 a |
| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Scott |
3 a |
