| 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 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
H 10 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
H 15 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
H 15 |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
H 27 |
