| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
14 |
| Bach, Jean-Paul, und Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
22 |
| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Stanley Gibbons |
23 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
23 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
23 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Befund |
Stanley Gibbons |
26 |
| Fiecchi, Alfredo Ermo (Sonstiges) |
Attest |
Yvert et Tellier |
3 B |
| Holcombe, Peter (Sonstiges) |
Attest |
Yvert et Tellier |
3 B |
