| The British Philatelic Association, Limited (Prüferkommission) |
Attest |
Michel |
|
| P.T.S., Expertising Ltd. (Prüferkommission) |
Attest |
Michel |
|
| The British Philatelic Association, Limited (Prüferkommission) |
Attest |
Michel |
|
| The British Philatelic Association, Limited (Prüferkommission) |
Attest |
Michel |
|
| The British Philatelic Association, Limited (Prüferkommission) |
Attest |
Michel |
|
| The British Philatelic Association, Limited (Prüferkommission) |
Attest |
Michel |
|
| SIA, Stamp Institute of America (Prüferkommission) |
Attest |
ohne Angabe |
|
| The British Philatelic Association, Limited (Prüferkommission) |
Attest |
Michel |
|
