| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
14 var |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
140 a |
| Holcombe, Peter (Sonstiges) |
Attest |
Stanley Gibbons |
140; 199 |
| RPSL, Royal Philatelic Society of New Zealand (Prüferkommission) |
Attest |
Stanley Gibbons |
141 a |
| Gibbs, Robert M (Sonstiges) |
Attest |
Stanley Gibbons |
141 ag |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
142 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
142 |
| Odenweller, Robert P. (AIEP (Association internationale des experts en philatélie)) |
Attest |
Stanley Gibbons |
142 |
