| The Philatelic Foundation, (Prüferkommission) |
Sonstiges |
Scott |
13 a |
| BPA, Expertising Limited (Prüferkommission) |
Attest |
Stanley Gibbons |
13 a |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
13 b |
| Rocha, Carlos Hernández (Prüferkommission) |
Attest |
Scott |
13 c |
| NPC, National Philatelic Centre (Prüferkommission) |
Attest |
ACSC: Australien-Commonwealth-Spezialist-Katalog |
13 Ib |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Michel |
13 K |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Michel |
130 |
| PSE, Professional Stamp Experts (Prüferkommission) |
Attest |
Scott |
130 |
