| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Michel |
10 a |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
12 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
15 c; 17 c; |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
17 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
2 |
| Stanley Gibbons, Limited (Händlergarantien) |
Attest |
Stanley Gibbons |
2; 3 |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
21 |
| Stanley Gibbons, Limited (Händlergarantien) |
Attest |
Stanley Gibbons |
30 |
