| 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 |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
H 29 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
H 30 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
H 31 a |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
H II b |
