| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
62 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
62 c |
| Philatelic Federation of South Africa, (Prüferkommission) |
Sonstiges |
Stanley Gibbons |
62 c |
| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Scott |
62 X 3 |
| Philatelic Federation of South Africa, (Prüferkommission) |
Attest |
Stanley Gibbons |
62; 63 |
| Exfima, Comision de expertos (Prüferkommission) |
Attest |
Michel |
63 /I |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
63 a |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
63 a |
