| Prüfer | Art der Urkunde | Katalog | KatalogNr. |
|---|
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 5 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 5 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 5 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 5 d |
| The American Philatelic, Expertization Service (Prüferkommission) | Attest | Scott | 5a |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | C 5 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 5 A |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 5 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 5; 7 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 5 |
| Vincent Graves Greene, Philatelic Research Foundation (Prüferkommission) | Attest | Scott | C 5 |
| Weiss Expertizing International, . (Sonstiges) | Attest | Scott | 5 A |
| Weiss jr., William R. (Sonstiges) | Attest | Scott | 5 A |
| Colla Asinelli, Giorgio (APFIP (Associazione Periti Filatelici Italiani Professioni.)) | Attest | Scott | 6 |
| Friedl Expert Committee, (Prüferkommission) | Attest | Scott | 6; 7 |
| Hawaiian, Philatelic Society (Prüferkommission) | Attest | Scott | 6 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 6 |
| PSAG (Philatelic Stamp, Authetication and Grading) (Prüferkommission) | Attest | Scott | R 6 |
| PSAG (Philatelic Stamp, Authetication and Grading) (Prüferkommission) | Attest | Scott | C 6 |
| PSAG (Philatelic Stamp, Authetication and Grading) (Prüferkommission) | Attest | Scott | C 6 |
| Paaskesen, Erik (Sonstiges) | Attest | Scott | 6 |
| Sadri, Mehrdad (Sonstiges) | Attest | Scott | 6 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | C 6 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 6 LB 5 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 6 KB 5 b |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 6 LB 11 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 6 P5 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 6 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | C 6 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 6 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 7 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 7 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 7 |
| Moorhouse, Brian (Sonstiges) | Attest | Scott | 7; 9 |
| Moorhouse, Brian (Sonstiges) | Attest | Scott | 7 |
| Scheller, Pascal (Sonstiges) | Attest | Scott | 7 B |
| The One Cent Franklin Plating Archive, Richard Doporto (Sonstiges) | Attest | Scott | 7 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | C 7 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 7; 9 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 7 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 7 |
| APS, (American Philatelic Society) (Prüferkommission) | Attest | Scott | 8 c |
| Cilio, Sebastiano (Sonstiges) | Sonstiges | Scott | J 8 - 8 |
| Dahnke, Kurt H. (BPP (Bund Philatelistischer Prüfer)) | Attest | Scott | 8 |
| Friedl Expert Committee, (Prüferkommission) | Attest | Scott | 8 und 12 |
| Friedl Expert Committee, (Prüferkommission) | Attest | Scott | C 8 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 8 |
| Moorhouse, Brian (Sonstiges) | Attest | Scott | 8 |
| PSAG (Philatelic Stamp, Authetication and Grading) (Prüferkommission) | Attest | Scott | R 8 |
| PSE, Professional Stamp Experts (Prüferkommission) | Attest | Scott | 8 |
