| Stegmüller, Franz (BPP (Bund Philatelistischer Prüfer)) |
Befund |
Michel |
U 13; 23; U 12; 17 a |
| Stegmüller, Franz (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
U 1A,; 7 |
| Stegmüller, Franz (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
U 1A; 18 |
| Stegmüller, Franz (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
U 2A; 10 c |
| Stegmüller, Franz (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
U 3 B |
| Grobe, Hans (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
U 4 A |
| Stegmüller, Franz (BPP (Bund Philatelistischer Prüfer)) |
Attest |
Michel |
U 7 IA; 10 b |
| Brettl, Maria (AIEP (Association internationale des experts en philatélie)) |
Attest |
Michel |
U 7; 7 |
