| Sieger, Hermann Walter (BPP (Bund Philatelistischer Prüfer)) |
Attest |
ohne Angabe |
|
| Sismondo, Liane & Sergio (Sonstiges) |
Attest |
ohne Angabe |
|
| Vincent Graves Greene, Philatelic Research Foundation (Prüferkommission) |
Attest |
Scott |
130 a |
| Vincent Graves Greene, Philatelic Research Foundation (Prüferkommission) |
Attest |
Scott |
1442 b |
| Fédération québécoise, de philatélie (Prüferkommission) |
Attest |
Scott |
163 |
| Gratton, Richard (AIEP (Association internationale des experts en philatélie)) |
Attest |
Scott |
1764 b |
| Gratton, Richard (AIEP (Association internationale des experts en philatélie)) |
Attest |
Scott |
19 a |
| Gratton, Richard (AIEP (Association internationale des experts en philatélie)) |
Attest |
Scott |
22 b |
