| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
38 as |
| The Stamp Trade Protection, Association Ltd. (Prüferkommission) |
Attest |
Stanley Gibbons |
38 c |
| Rodgau Philatelic, Service GmbH (Prüferkommission) |
Attest |
Michel |
38 I; 39 I |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
38 L 1 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
38; 40; 43 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
382 |
| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Scott |
3895 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
39 |
