| Toselli, Roberto (Sonstiges) |
Attest |
Stanley Gibbons |
1 |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
1 |
| Louis, Karl-Albert (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Stanley Gibbons |
1 |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
1 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
1 |
| JFB, Philatélie (Händlergarantien) |
Attest |
Stanley Gibbons |
1 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
1 |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
1 |
