| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
20 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Stanley Gibbons |
20 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
20 a |
| Holcombe, Peter (Sonstiges) |
Befund |
Stanley Gibbons |
20 a |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
20 b |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
20 d var |
| Hamilton-Bowen, Roy (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Stanley Gibbons |
201 a |
| Ceremuga, Krzysztof (Sonstiges) |
Attest |
Stanley Gibbons |
206 a |
