| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Michel |
234 IV e |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
235 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
236 a |
| Experts &, Consultants Limited (Prüferkommission) |
Attest |
Scott |
237 a |
| Pfenninger, Brettl, Schmidt (Prüferkommission) |
Attest |
Michel |
24 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Scott |
24 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
24 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
24 |
