| Deutsches Institut, für internationale Philatelie (Prüferkommission) |
Attest |
Michel |
7 a |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Michel |
7 a H |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
7 b |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
7 B |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Stanley Gibbons |
7 b; 7 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
7; 31; 25; 26; 35; 47 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
7; 9 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
70 |
