| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
2 |
| Friedl Expert Committee, (Prüferkommission) |
Attest |
Scott |
2 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) |
Attest |
Scott |
2 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) |
Attest |
Scott |
2 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
2 |
| PSAG (Philatelic Stamp, Authetication and Grading) (Prüferkommission) |
Attest |
Scott |
2 |
| CEM, Comision de Expertos de Madrid (Prüferkommission) |
Attest |
Edifil |
2 |
| CEM, Comision de Expertos de Madrid (Prüferkommission) |
Attest |
Edifil |
2 |
