| Prüfer | Art der Urkunde | Katalog | KatalogNr. |
|---|
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 39 e |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 39 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 40 L 6 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 40 L 1 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 40 L 1 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 41 |
| Crowe, William T. (Sonstiges) | Attest | Scott | 42 L 2 |
| The Stamp Authentication Section of, the China National Postage Museum (Sonstiges) | Attest | Scott | 42 a |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 43 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 43 A |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 43; 47 |
| Mikulski, Zbigniew S. (AIEP (Association internationale des experts en philatélie)) | Attest | Scott | 43 a |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 46 |
| Moorhouse, Brian (Sonstiges) | Attest | Scott | 46 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 47 |
| Hamilton-Bowen, Roy (BPP (Bund Philatelistischer Prüfer)) | Attest | Scott | 48 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 50 |
| MEPSI, Mexico Elmhurst Philatelic Society Inter (Prüferkommission) | Attest | Scott | 51 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 51 L 1 |
| Raritan, Stamps Inc. (Sonstiges) | Attest | Scott | 53 |
| Rendon, Alex (AIEP (Association internationale des experts en philatélie)) | Attest | Scott | 053 |
| Moorhouse, Brian (Sonstiges) | Attest | Scott | 54 a; 62 a |
| The China Stamp, Society, Inc (Prüferkommission) | Attest | Scott | 55 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 55 L 3 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 56 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 58 X 2 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | C 58 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 59 L 2 b |
| Crowe, William T. (Sonstiges) | Attest | Scott | J60 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 60 a |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 61 |
| APS, (American Philatelic Society) (Prüferkommission) | Attest | Scott | 62 X 3 |
| Friedl Expert Committee, (Prüferkommission) | Attest | Scott | 62 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 62 |
| Raritan, Stamps Inc. (Sonstiges) | Attest | Scott | 63 |
| Rendon, Alex (AIEP (Association internationale des experts en philatélie)) | Attest | Scott | 64 |
| Bach, Jean-Paul, und Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) | Attest | Scott | 65 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 66 L 1 |
| Rossica, The Society of Russan Philately (Prüferkommission) | Attest | Scott | C 68 b |
| Sismondo, Sergio (Sonstiges) | Attest | Scott | C 68 |
| Moorhouse, Brian (Sonstiges) | Attest | Scott | 69 c |
| Moorhouse, Brian (Sonstiges) | Attest | Scott | 69 a |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 73 L 1 |
| APS, (American Philatelic Society) (Prüferkommission) | Attest | Scott | 75 |
| PSAG (Philatelic Stamp, Authetication and Grading) (Prüferkommission) | Attest | Scott | 78 |
| Buchsbayew, Paul (AIEP (Association internationale des experts en philatélie)) | Attest | Scott | 81 |
| Sismondo, Sergio (Sonstiges) | Attest | Scott | 81 - 97 |
| Sloane, George B. (Händlergarantien) | Prüfermitteilungen | Scott | 81 X I |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 81 |
| The Philatelic Foundation, (Prüferkommission) | Attest | Scott | 81 X I |
