| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
7; 31; 25; 26; 35; 47 |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
70 |
| Ceremuga, Krzysztof (AIEP (Association internationale des experts en philatélie)) |
Sonstiges |
Stanley Gibbons |
70 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
70 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
70 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
70 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Sonstiges |
Stanley Gibbons |
70 a |
| RPSVI, Royal Philatelic Society of Victoria Inc (Prüferkommission) |
Sonstiges |
Stanley Gibbons |
70 a |
