| Experts &, Consultants Limited (Prüferkommission) |
Attest |
Yang |
EC 307 |
| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Yang |
EC269 a |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Yang |
EC60 |
| RPSVI, Royal Philatelic Society of Victoria Inc (Prüferkommission) |
Sonstiges |
Stanley Gibbons |
F 38 ? |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
F I b |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
F167 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
F491; 492 |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
G 1 aa |
