| Prüfer | Art der Urkunde | Katalog | KatalogNr. |
|---|
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | U 1B |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | U 1A |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 |
| Winkler, Hartmut (BPP (Bund Philatelistischer Prüfer)) | Kurzbefund | Michel | Leverkusen 1 a |
| Witschi, Hans (SBPV / ASEP (Schweizerischer Briefmarken-Prüfer-Verband)) | Attest | Michel | 1 |
| Zierer, Hanns (Sonstiges) | Attest | Michel | 1 a |
| Zierer, Hanns (Sonstiges) | Attest | Michel | 1 a: 2 a |
| Zierer, Hanns (Sonstiges) | Sonstiges | Michel | 1 |
| Zirath, Walter (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 BP I |
| Zirath, Walter (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 BP I; 1 BP II |
| Zirath, Walter (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 U |
| van der Linden, James (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1; 4; 5 |
| von Heintze, Jobst (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 m VIII |
| von der Weid, Alain (SBPV / ASEP (Schweizerischer Briefmarken-Prüfer-Verband)) | Attest | Michel | 1 a |
| Šedivý, Václav (Sonstiges) | Attest | Michel | Porto 1 |
| Abt, Walter (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | Zürich 2 I Type III |
| Alcuri, Paul J. (Sonstiges) | Attest | Michel | 2 III |
| Andersen, Hans (Sonstiges) | Attest | Michel | 2 a |
| Arenz, Hartmut (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 2 I |
| Arenz, Hartmut (Sonstiges) | Attest | Michel | 2 I |
| Arenz, Hartmut (Sonstiges) | Befund | Michel | 2 I |
| BPA, The British Philatelic Association Limit (Prüferkommission) | Attest | Michel | 2 II |
| BPA, The British Philatelic Association Limit (Prüferkommission) | Attest | Michel | 2 I DD K Abart |
| BPA, The British Philatelic Association Limit (Prüferkommission) | Attest | Michel | 2 a |
| Bach, Jean-Paul, und Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) | Attest | Michel | 2 a; 2 aI |
| Bach, Jean-Paul, und Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) | Attest | Michel | 2 b |
| Balasse, Willy (Sonstiges) | Attest | Michel | 2 |
| Barth, Norbert (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 2 a |
| Baschwitz, German (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | Block 2 |
| Baschwitz, German (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | Block 2 U |
| Benussi, Ruggero (AIEP (Association internationale des experts en philatélie)) | Attest | Michel | 2; 5 |
| Benussi, Ruggero (AIEP (Association internationale des experts en philatélie)) | Kurzbefund | Michel | 2 I a |
| Berger, Florian (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 2 a |
| Berger, Florian (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 2 a |
| Berger, Florian (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 2 a |
| Berger, Florian (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 2 b; 2 b V |
| Berger, Florian (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 2 a; U 3 A |
| Berger, Florian (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 2 b |
| Berger, Florian (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 2 a; U 1 A |
| Berger, Florian (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | U 2 B |
