| Prüfer | Art der Urkunde | Katalog | KatalogNr. |
|---|
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 Ia |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 Ia |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 Ia |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 Ia |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 I b |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 Iia |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 Ib |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 Ia |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 Ia |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 Ib |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 IIa |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 Ia |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 III a |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 II b |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 I a |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 III a |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 I a |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 Ia |
| Bühler, Georg (Sonstiges) | Attest | Michel | 1 III a |
| Bühler, Georg (Sonstiges) | Attest | Michel | 1 I a ZW |
| Bühler, Georg (Sonstiges) | Attest | Michel | 1 a |
| Bühler, Georg (Sonstiges) | Attest | Michel | 1 Ia |
| Deutsches Institut, für internationale Philatelie (Prüferkommission) | Attest | Michel | 1 a |
| Diena, Alberto (Sonstiges) | Attest | Michel | 1 a |
| Diena, Enzo (Sonstiges) | Sonstiges | Michel | 1 |
| Drahn, August Wilhelm (Händlergarantien) | Attest | Michel | 1 a |
| Ebel, Arnold (Sonstiges) | Attest | Michel | 1 Ia |
| Engel, Walter (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 a |
| Frey, Leopold (Sonstiges) | Attest | Michel | 1 a |
| Fulpius, George (SBPV / ASEP (Schweizerischer Briefmarken-Prüfer-Verband)) | Attest | Michel | 1 Ib |
| Holcombe, Peter (Sonstiges) | Sonstiges | Michel | 1 Ia |
| Hunziker, Hans (SBPV / ASEP (Schweizerischer Briefmarken-Prüfer-Verband)) | Kurzbefund | Michel | 1 a |
| Lange, Carl H. (Sonstiges) | Attest | Michel | 1 I a |
| Pfenninger, Brettl, Schmidt (Prüferkommission) | Attest | Michel | 1 a |
| Pfenninger, Brettl, Schmidt (Prüferkommission) | Attest | Michel | 1 a II; 3 a |
| Pfenninger, Brettl, Schmidt (Prüferkommission) | Attest | Michel | 1 a |
| Pfenninger, Brettl, Schmidt (Prüferkommission) | Prüfermitteilungen | Michel | 1 b |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 II a |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 a |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 b |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 b |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 b |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 a |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 a |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 a |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 aI |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 a |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 II |
| Pfenninger, Franz (Sonstiges) | Attest | Michel | 1 b |
