| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
2 |
| FNIP - Federation of, national and international stamp dealers (Prüferkommission) |
Attest |
COB / OBP / OCP |
2 |
| CEM, Comision de Expertos de Madrid (Prüferkommission) |
Attest |
Edifil |
2 |
| CEM, Comision de Expertos de Madrid (Prüferkommission) |
Attest |
Edifil |
2 |
| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Scott |
2 |
| PSE, Professional Stamp Experts (Prüferkommission) |
Sonstiges |
Scott |
2 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
2 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
2 |
