| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
15 |
| Pfenninger, Brettl, Schmidt (Prüferkommission) |
Attest |
Michel |
15 |
| Pfenninger, Brettl, Schmidt (Prüferkommission) |
Attest |
Michel |
15 |
| Vincent Graves Greene, Philatelic Research Foundation (Prüferkommission) |
Attest |
Scott |
15 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
15 |
| Friedl Expert Committee, (Prüferkommission) |
Attest |
Scott |
15 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
15 |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
15 |
