| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
B 10 a |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
B 11 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
B 12 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Michel |
Bhopal Dienst 3 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Yvert et Tellier |
Block 3 |
| PSE, Professional Stamp Experts (Prüferkommission) |
Attest |
Scott |
C 1 - C 6 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
C 1 a |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
C 10 |
