| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
58 |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
67 da |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
80 e |
| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Scott |
A 1 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
I |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
O 15 ca |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
O 88 a |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
O 97 a |
