| Heitmann, Claus (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
3; 6 e; 7 a |
| Witschi, Hans (Sonstiges) |
Attest |
Michel |
3; 6; 7 a |
| Möller, Carl Aage (AIEP (Association internationale des experts en philatélie)) |
Attest |
Michel |
3; 6; 7 a |
| Lemberger, Hellmuth (Sonstiges) |
Attest |
Michel |
3; 7 a; 6 c |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
3; 7 b |
| Wilderbeek, Hans (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
3; 7 b |
| Möller, Carl Aage (AIEP (Association internationale des experts en philatélie)) |
Attest |
Michel |
3; 8 |
| Nussbaum-Bisser, André (SBPV / ASEP (Schweizerischer Briefmarken-Prüfer-Verband)) |
Attest |
Michel |
3; 8 |
