| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
56 |
| Danske filatelisters, Provningsudvalg (Prüferkommission) |
Attest |
Facit |
56 |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
56 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
57 var |
| 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 |
