| Jackson, Mike (Sonstiges) |
Attest |
Stanley Gibbons |
AS 57 |
| Louis, Karl (Sonstiges) |
Attest |
Stanley Gibbons |
AS 57 |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
B 10 a |
| Brandon, David Expert Committee (Prüferkommission) |
Attest |
Stanley Gibbons |
B 11 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
B 12 |
| Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) |
Attest |
Stanley Gibbons |
B 5 a |
| Williams, Mike (Sonstiges) |
Attest |
Stanley Gibbons |
C 3 |
| Williams, Mike (Sonstiges) |
Attest |
Stanley Gibbons |
C 5 |
