| Odenweller, Robert P. (AIEP (Association internationale des experts en philatélie)) |
Attest |
Stanley Gibbons |
40 |
| Odenweller, Robert P. (AIEP (Association internationale des experts en philatélie)) |
Attest |
Stanley Gibbons |
49 |
| Odenweller, Robert P. (AIEP (Association internationale des experts en philatélie)) |
Attest |
Stanley Gibbons |
52 |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
56 |
| RPSL, Royal Philatelic Society of New Zealand (Prüferkommission) |
Attest |
Stanley Gibbons |
584ca |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
72 |
| KGVI-Expertising, (Prüferkommission) |
Attest |
Stanley Gibbons |
813 a |
| Odenweller, Robert P. (AIEP (Association internationale des experts en philatélie)) |
Attest |
Stanley Gibbons |
97 |
