| Prüfer | Art der Urkunde | Katalog | KatalogNr. |
|---|
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 21 a |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 21 d |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 32 c |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 35 |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Kurzbefund | Michel | 2 Ia |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Kurzbefund | Michel | 7 |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Kurzbefund | Michel | 13 a |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) | Kurzbefund | Michel | 13 a |
| 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 |
| Bühler, Georg (Sonstiges) | Attest | Michel | 3 II |
| Bühler, Georg (Sonstiges) | Attest | Michel | 7 |
| Bühler, Georg (Sonstiges) | Attest | Michel | 9 b; 13 a |
| Bühler, Georg (Sonstiges) | Attest | Michel | 13 a |
| Bühler, Georg (Sonstiges) | Attest | Michel | 21 a |
| Bühler, Georg (Sonstiges) | Attest | Michel | 21 a |
| Bühler, Georg (Sonstiges) | Attest | Michel | 26 X |
| Deutsches Institut, für internationale Philatelie (Prüferkommission) | Attest | Michel | 1 a |
| Deutsches Institut, für internationale Philatelie (Prüferkommission) | Attest | Michel | 5d |
| Diena, Alberto (Sonstiges) | Attest | Michel | 1 a |
| Diena, Alberto (Sonstiges) | Attest | Yvert et Tellier | 1 |
| 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 |
| Friedl Expert Committee, (Prüferkommission) | Attest | Michel | 2 I |
| Friedl Expert Committee, (Prüferkommission) | Attest | Michel | 4 II |
| Friedl Expert Committee, (Prüferkommission) | Attest | Michel | 10 H |
| Friedl Expert Committee, (Prüferkommission) | Attest | Michel | 20 H |
| Fulpius, George (SBPV / ASEP (Schweizerischer Briefmarken-Prüfer-Verband)) | Attest | Michel | 1 Ib |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | I U |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 2 II |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 3 I b; 4 II |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 3 I b; 4 II; 5d |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 4 II |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 4 II |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 4 II; 5 d |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 5 c |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | D 11 I |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 18; 22 Yb; 24 Y |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 19; 23 X |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 38 c |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 38 a |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 39 a |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 39 b; 41 |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 39 b; 46 |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 39 b; 46 |
