| van der Linden, James (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
|
| Greis, Ortwin (AIEP (Association internationale des experts en philatélie)) |
Attest |
Michel |
|
| Vaarnas, Kalle (Sonstiges) |
Attest |
Michel |
|
| Visnyovszki, Gábor (AIEP (Association internationale des experts en philatélie)) |
Attest |
Michel |
|
| Geyfman, Joseph (Sonstiges) |
Attest |
Michel |
|
| Michaux, Albert (Sonstiges) |
Attest |
Michel |
|
| Fiecchi, Alfredo Ermo (Sonstiges) |
Attest |
Michel |
|
| BPA, The British Philatelic Association Limit (Prüferkommission) |
Attest |
Michel |
|
