| CEM, Comision de Expertos de Madrid (Prüferkommission) |
Attest |
Edifil |
3 |
| RPSVI, Royal Philatelic Society of Victoria Inc (Prüferkommission) |
Attest |
Stanley Gibbons |
3 |
| PSE, Professional Stamp Experts (Prüferkommission) |
Attest |
Scott |
3 |
| Friedl Expert Committee, (Prüferkommission) |
Attest |
Zumstein |
3 |
| BPA, Expertising Limited (Prüferkommission) |
Sonstiges |
Scott |
3 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
3 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Scott |
3 |
| Experts, Philatelic (PE) (Prüferkommission) |
Attest |
Michel |
3 |
