| Holcombe, Peter (Sonstiges) |
Attest |
Stanley Gibbons |
a |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
A 1 a |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Stanley Gibbons |
A 10 |
| Friedl Expert Committee, (Prüferkommission) |
Attest |
Stanley Gibbons |
A 2; A 2a; A2 b |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
AS 14; DS 8 f |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
AS 44 |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
AS 46 |
| Louis, Karl-Albert (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Stanley Gibbons |
AS 5; AS 5 h |
