| The Philatelic Foundation, (Prüferkommission) |
Attest |
Facit |
1 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
1 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Scott |
1 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
1 |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
1 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
1 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Michel |
1 |
| PSAG (Philatelic Stamp, Authetication and Grading) (Prüferkommission) |
Attest |
Scott |
1 |
