| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) |
Attest |
Scott |
445 |
| PSE, Professional Stamp Experts (Prüferkommission) |
Sonstiges |
Scott |
449 |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Scott |
449 PI |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) |
Attest |
Scott |
453 |
| Moorhouse, Brian (Sonstiges) |
Attest |
Scott |
46 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) |
Attest |
Scott |
46 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
47 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
475 |
