| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
M 41 |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
M 42 |
| Scheller, Pascal (Sonstiges) |
Attest |
Stanley Gibbons |
M 5 |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
M 5 A |
| Gibbs, Robert M (Sonstiges) |
Attest |
Stanley Gibbons |
M 6 A |
| Bach, Jean-Paul, und Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
M 6 B |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
M 7 A |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
M 8 A |
