| Sem, Peter (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
18; 12; 10 a |
| Schmitt, Joh. Ulrich (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
18; 14 a |
| Stegmüller, Franz (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
18; 19 |
| Schmitt, Joh. Ulrich (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
18; 20 |
| Sem, Peter (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
18; 22 Xa |
| Brettl, Maria (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
18; 22 Yb; 24 Y |
| Helbig, Joachim (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
18; 22 Yb; 24 Y |
| Hunziker, Hans (AIEP (Association internationale des experts en philatélie)) |
Attest |
Michel |
18; 23 |
