| Campbell, Paterson Ltd. (Sonstiges) |
Attest |
Stanley Gibbons |
133 b |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
135 |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
137 |
| Ceremuga, Krzysztof (Sonstiges) |
Attest |
Stanley Gibbons |
138 c |
| RPSL, Royal Philatelic Society of New Zealand (Prüferkommission) |
Attest |
Stanley Gibbons |
139 a |
| Sorani, Silvano (APFIP (Associazione Periti Filatelici Italiani Professioni.)) |
Attest |
Stanley Gibbons |
14 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
14 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
14 |
