| Stegmüller, Franz (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
17 c; 25 a |
| Ossa, Mikko (Sonstiges) |
Attest |
Michel |
17 Cb |
| Bach, Jean-Paul, und Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Michel |
17 d |
| Hettler, Dieter (BPP (Bund Philatelistischer Prüfer)) |
Befund |
Michel |
17 d D |
| Ossa, Mikko (Sonstiges) |
Attest |
Michel |
17 Db |
| Paul, Siegfried (BPP (Bund Philatelistischer Prüfer)) |
Befund |
Michel |
17 F |
| Möhle, Heinz (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
17 F |
| Paaskesen, Erik (Sonstiges) |
Attest |
Michel |
17 I |
