| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
L 02 P 2 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
L 19 |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
L 22 |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
L3; 80 a |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Yang |
LCC31 |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Yang |
LEC1A |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Facit |
LG 9 |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
LO 1 TC 5 a |