| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
63 a |
| RPSVI, Royal Philatelic Society of Victoria Inc (Prüferkommission) |
Attest |
ACSC: Australien-Commonwealth-Spezialist-Katalog |
63 Ha |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
63 var |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Michel |
642 u.a. |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
65 |
| Brettl, Schmitt (Prüferkommission) |
Attest |
Michel |
66 II |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
66 L 1 |
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Stanley Gibbons |
67 a |
