| Warwick & Warwick, Philatelic Investment Service (Händlergarantien) |
Attest |
Stanley Gibbons |
5 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| Scheller, Pascal (Sonstiges) |
Attest |
Stanley Gibbons |
5 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
