| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
133 b |
| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
134 LU 3 VAR |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
135 |
| Belgische Liga, vor Postzegelhandelaren (B.L.P.) (Prüferkommission) |
Attest |
Michel |
135 - 149 |
| Comex, (Prüferkommission) |
Attest |
Edifil |
135; IG 2; 3; 4 |
| PSAG (Philatelic Stamp, Authetication and Grading) (Prüferkommission) |
Attest |
Scott |
1384 |
| RPSL, Royal Philatelic Society of New Zealand (Prüferkommission) |
Attest |
Stanley Gibbons |
139 a |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Scott |
14 |
