| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
149 ea |
| Wigmore, Michael (Sonstiges) |
Attest |
Stanley Gibbons |
155 a |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
170 a |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Stanley Gibbons |
20 |
| Bach, Jean-Paul, und Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
37 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
41 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
Z 3 |
