| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
58 a |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
58 a |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
58 X 2 |
| RPSL, Royal Philatelic Society of New Zealand (Prüferkommission) |
Attest |
Stanley Gibbons |
584ca |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
585/IV |
| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Michel |
59 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
59 a |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
59 a |
