| Kaufmann, Jacques (Sonstiges) |
Attest |
Stanley Gibbons |
59 |
| Dorfman, David (Sonstiges) |
Attest |
Stanley Gibbons |
59 |
| Louis, Karl-Albert (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Stanley Gibbons |
59 |
| Bach, Jean-Paul, und Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
59 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
59 a |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
59 a |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
59 var |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
5b |
