| 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 |
| Rossica, The Society of Russan Philately (Prüferkommission) |
Attest |
Scott |
362 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
37 |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
37 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
37 |
