| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
O 34 var |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
O 351 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
O 38 A |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
O 38 B |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
O 43 d |
| Scheller, Pascal (Sonstiges) |
Attest |
Stanley Gibbons |
O 45 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
O 48 a |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
O 52 var |
