| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Scott |
5 |
| RPSVI, Royal Philatelic Society of Victoria Inc (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
| Vincent Graves Greene, Philatelic Research Foundation (Prüferkommission) |
Attest |
Stanley Gibbons |
5 |
