| Zanetti, Fiorenzo (AIEP (Association internationale des experts en philatélie)) |
Attest |
Sassone |
9; 19 |
| Carraro, Diego (Sonstiges) |
Attest |
Sassone |
91 b |
| Ferrario, Filippo (Händlergarantien) |
Attest |
Sassone |
91; 77; 184 |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Sassone |
921 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
921 |
| Cilio, Sebastiano (Sonstiges) |
Attest |
Sassone |
921 |
| Avi, Helmuth (SBPV / ASEP (Schweizerischer Briefmarken-Prüfer-Verband)) |
Attest |
Sassone |
93 |
| Avanzo, Giacomo (Sonstiges) |
Attest |
Sassone |
94 |
