| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
35 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
35 |
| Brettl, Schmitt (Prüferkommission) |
Attest |
Michel |
35 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
35 a |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
35 a |
| RPSVI, Royal Philatelic Society of Victoria Inc (Prüferkommission) |
Attest |
Stanley Gibbons |
35 b |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
358 |
| FNIP - Federation of, national and international stamp dealers (Prüferkommission) |
Attest |
COB / OBP / OCP |
3609 |
