| Bach, Jean-Paul, und Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
H 2 |
| Gibbs, Robert M (Sonstiges) |
Attest |
Stanley Gibbons |
H 24 |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
H 27 |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
H 29 |
| Scheller, Pascal (Sonstiges) |
Attest |
Stanley Gibbons |
H 3 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
H 30 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
H 31 a |
| Scheller, Pascal (Sonstiges) |
Attest |
Stanley Gibbons |
H 7 |
