| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
576 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
58 |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
58 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
58 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
58 a |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
58 a |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
58 X 2 |
| RPSL, Royal Philatelic Society of New Zealand (Prüferkommission) |
Attest |
Stanley Gibbons |
584ca |
