| KGVI-Expertising, (Prüferkommission) |
Befund |
Stanley Gibbons |
129 a |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
129 c |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
226 a |
| Philatelic Federation of South Africa, (Prüferkommission) |
Attest |
Stanley Gibbons |
226 a |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
27 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
297 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
32 a |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
38 |
