| CEM, Comision de Expertos de Madrid (Prüferkommission) |
Attest |
Edifil |
15 - 24 |
| NPC, National Philatelic Centre (Prüferkommission) |
Attest |
ACSC: Australien-Commonwealth-Spezialist-Katalog |
15 A |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
15 a |
| Indian States Expertizing Service Inc., (ISES) (Prüferkommission) |
Attest |
Stanley Gibbons |
15 a |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Stanley Gibbons |
15 c; 17 c; |
| Raybaudi, Experts (Prüferkommission) |
Attest |
Sassone |
15 d |
| RPSL, Royal Philatelic Society (Prüferkommission) |
Attest |
Michel |
15 II PFF |
| CEM, Comision de Expertos de Madrid (Prüferkommission) |
Attest |
Edifil |
15 s - 27 s |
