| Experts, Philatelic (PE) (Prüferkommission) |
Attest |
Michel |
9 a |
| Nucleo Filatelico, . (Prüferkommission) |
Attest |
Michel |
9 b |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Michel |
9 I a |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Michel |
9 I a |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Michel |
9 IIF |
| Comex, (Prüferkommission) |
Attest |
Edifil |
9 s; 9 hes |
| Vincent Graves Greene, Philatelic Research Foundation (Prüferkommission) |
Attest |
Sonstige |
9 TC |
| PSAG (Philatelic Stamp, Authetication and Grading) (Prüferkommission) |
Attest |
Scott |
9 X 1 |
