| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
425 |
| Bach, Jean-Paul, und Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Michel |
5 b |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
5; 6 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
52 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
59 a |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
59 a |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
67 a |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
68 c |
