| The Philatelic Foundation, (Prüferkommission) |
Attest |
Scott |
7 |
| PSE, Professional Stamp Experts (Prüferkommission) |
Attest |
Scott |
707 |
| The One Cent Franklin Plating Archive, Richard Doporto (Sonstiges) |
Attest |
Scott |
8 A |
| Weiss Expertizing International, . (Sonstiges) |
Attest |
Scott |
97 |
| PSE, Professional Stamp Experts (Prüferkommission) |
Attest |
Scott |
C 1 - C 6 |
| PSE, Professional Stamp Experts (Prüferkommission) |
Attest |
Scott |
C 13 |
| PSE, Professional Stamp Experts (Prüferkommission) |
Attest |
Scott |
C 14 |
| PSE, Professional Stamp Experts (Prüferkommission) |
Attest |
Scott |
C 15 |
