| Philatelic Federation of South Africa, (Prüferkommission) |
Attest |
Stanley Gibbons |
166 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
186 |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
213 a |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
217 a |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
236 a |
| Gibbs, Robert M (Sonstiges) |
Attest |
Stanley Gibbons |
242 |
| Gibbs, Robert M (Sonstiges) |
Attest |
Stanley Gibbons |
242 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
245 |
