| Diena, Alberto (Sonstiges) |
Attest |
Sassone |
6; 6 f |
| Manzoni, Massimo (Sonstiges) |
Befund |
Sassone |
6A/1 |
| Vespermann, H. W. (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
7 a |
| Zanini, Mario (Sonstiges) |
Attest |
Michel |
7 a |
| Avi, Helmuth (SBPV / ASEP (Schweizerischer Briefmarken-Prüfer-Verband)) |
Attest |
Sassone |
7 A; 5 A |
| Colla, Giorgio (APFIP (Associazione Periti Filatelici Italiani Professioni.)) |
Attest |
Sassone |
7 b |
| Diena, Alberto (Sonstiges) |
Attest |
ohne Angabe |
7 c |
| Diena, Enzo (Sonstiges) |
Attest |
Sassone |
7; 9; 10 |
