| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
54 a |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
54a var |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
55 |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
55 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
55 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
55 |
| Sismondo, Sergio (Sonstiges) |
Attest |
Stanley Gibbons |
55 b |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
55 c |
