| Prüfer | Art der Urkunde | Katalog | KatalogNr. |
|---|
| Bühler, Georg (Sonstiges) | Attest | Michel | 4 |
| Bühler, Georg (Sonstiges) | Attest | Michel | 1 |
| CEM, Comision de Expertos de Madrid (Prüferkommission) | Sonstiges | Michel | 27 |
| CEM, Comision de Expertos de Madrid (Sonstiges) | Attest | Michel | Block 4 |
| Caffaz, Egidio (APFIP (Associazione Periti Filatelici Italiani Professioni.)) | Sonstiges | Michel | 1-3 |
| Calves &, Jacquart (Händlergarantien) | Attest | Michel | 1; 5; F 26 c |
| Calves &, Jacquart (Händlergarantien) | Attest | Michel | 1 C, 2 C, 10 C |
| Calves &, Jacquart (Händlergarantien) | Attest | Michel | D 31 |
| Calves &, Jacquart (Händlergarantien) | Attest | Michel | D 31 |
| Calves &, Jacquart (Händlergarantien) | Attest | Michel | D 31 III |
| Calves &, Jacquart (Händlergarantien) | Attest | Michel | Pakhoi 30 IV |
| Calves, Roger (Sonstiges) | Sonstiges | Michel | 18; 11 |
| Calves, Roger (Sonstiges) | Attest | Michel | Block 2 I |
| Calves, Roger (Sonstiges) | Attest | Michel | 3 |
| Calves, Roger (Sonstiges) | Attest | Michel | 0,30 Fr., unverausgabt, nicht im Katalog |
| Calves, Roger (Sonstiges) | Attest | Michel | 0,50 Fr., unverausgabt, nicht im Katalog |
| Calves, Roger (Sonstiges) | Attest | Michel | 1,75 Frs., unverausgabt, nicht im Katalog |
| Calves, Roger (Sonstiges) | Attest | Michel | 10 Frs., unverausgabt, nicht im Katalog |
| Calves, Roger (Sonstiges) | Attest | Michel | Hoi-Hao 30 II |
| Calves, Roger (Sonstiges) | Attest | Michel | Mong-Tseu 33 IV |
| Calves, Roger (Sonstiges) | Prüfermitteilungen | Michel | I |
| Ceremuga, Krzysztof (Sonstiges) | Attest | Michel | 16 g DD |
| Ceremuga, Krzysztof (Sonstiges) | Attest | Michel | 5 |
| Ceremuga, Krzysztof (Sonstiges) | Attest | Michel | 31 F |
| Ceremuga, Krzysztof (Sonstiges) | Attest | Michel | 7 |
| Ceremuga, Krzysztof (Sonstiges) | Attest | Michel | 1 P II |
| Ceremuga, Krzysztof (Sonstiges) | Attest | Michel | 4 |
| Ceremuga, Krzysztof (Sonstiges) | Attest | Michel | 5; 5K |
| Ceremuga, Krzysztof (Sonstiges) | Attest | Michel | 7 |
| Ceresa, Raymond J. (Sonstiges) | Attest | Michel | 51 |
| Chiavarello, Giovanni (Sonstiges) | Attest | Michel | 1 |
| Chiavarello, Giovanni (Sonstiges) | Sonstiges | Michel | 20; 21 H |
| Cohen Sabban, Albert (AIEP (Association internationale des experts en philatélie)) | Attest | Michel | 24 |
| Colla, Giorgio (APFIP (Associazione Periti Filatelici Italiani Professioni.)) | Attest | Michel | 10 - 14 |
| Colomphil, (Prüferkommission) | Attest | Michel | 2 b |
| Corinphila, . (Händlergarantien) | Attest | Michel | Zp 9 |
| Cueni, Werner (SBPV / ASEP (Schweizerischer Briefmarken-Prüfer-Verband)) | Attest | Michel | 7 |
| Czimmek, Ulrich (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | I |
| Czimmek, Ulrich (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | |
| Czimmek, Ulrich (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | VP 4 |
| Czimmek, Ulrich (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | VP 5; 10 |
| Czimmek, Ulrich (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 7 |
| Czimmek, Ulrich (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 7 H |
| Czimmek, Ulrich (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 14 |
| Czimmek, Ulrich (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 15; 17 |
| Czimmek, Ulrich (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 25 |
| Czimmek, Ulrich (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 26 a |
| Czimmek, Ulrich (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | V 48 d |
| Daebel, Roland (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 172 - 174 |
| Danske Filatelisters Provningsudvalg, Danske Filatelisters Provningsudvalg (Prüferkommission) | Attest | Michel | 25 B |
