| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
285 a |
| RPSVI, Royal Philatelic Society of Victoria Inc (Prüferkommission) |
Attest |
Stanley Gibbons |
285 ab |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
29 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
29 a |
| FSPL, Fédération des sociétés phil. luxembourg (Prüferkommission) |
Attest |
Prifix/Yvert |
29 und 42 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
290 c |
| APS, (American Philatelic Society) (Prüferkommission) |
Attest |
Scott |
294 a |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
295 |
