| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
21 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
21 |
| Sydney Philatelic Research, Drury, Michael (Sonstiges) |
Attest |
Stanley Gibbons |
21 |
| Williams, Mike (Sonstiges) |
Attest |
Stanley Gibbons |
21 |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
21 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
21 |
| Simmermacher, René (Sonstiges) |
Befund |
Stanley Gibbons |
21 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
21 b |
