| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
31 |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
31 |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
31 |
| Diaz Paulos, Fausto (Sonstiges) |
Attest |
Stanley Gibbons |
31 |
| RPSVI, Royal Philatelic Society of Victoria Inc (Prüferkommission) |
Sonstiges |
Stanley Gibbons |
31 c |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
31 var |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
310 a |
| Gibbs, Robert M (Sonstiges) |
Attest |
Stanley Gibbons |
311 |
