| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
T 26 |
| CEM, Comision de Expertos de Madrid (Prüferkommission) |
Attest |
Edifil |
T-51 |
| Friedl Expert Committee, (Prüferkommission) |
Attest |
Michel |
U 4 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Michel |
U2A + 3 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Michel |
V |
| GPS, Germany Philatelic Society (Prüferkommission) |
Attest |
Michel |
V 46 a |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
var |
| RPSVI, Royal Philatelic Society of Victoria Inc (Prüferkommission) |
Sonstiges |
Stanley Gibbons |
W 85 |
