| Prüfer | Art der Urkunde | Katalog | KatalogNr. |
|---|
| Liapine, Victor (Sonstiges) | Attest | Michel | |
| Liapine, Victor (Sonstiges) | Attest | Michel | 5283 II |
| Lieder, Günter (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 e; 1 d |
| Lindenau, Jörg (VP (Verband Philatelistischer Prüfer)) | Befund | Michel | 169 b |
| Lindenau, Jörg (VPh (Verein Philatelistischer Prüfer)) | Befund | Michel | 496 |
| Lindkens, Philippe und Thomas (Sonstiges) | Attest | Michel | 5 II |
| Lindkens, Philippe und Thomas (Sonstiges) | Attest | Michel | 6 II |
| Liniger, Werner (AIEP (Association internationale des experts en philatélie)) | Befund | Michel | 27 |
| Liniger, Werner (AIEP (Association internationale des experts en philatélie)) | Attest | Michel | 29 b |
| Liniger, Werner (AIEP (Association internationale des experts en philatélie)) | Attest | Michel | 61 XB |
| Liniger, Werner (AIEP (Association internationale des experts en philatélie)) | Attest | Michel | 108 x |
| Liniger, Werner (AIEP (Association internationale des experts en philatélie)) | Attest | Michel | 196 y |
| Liniger, Werner (AIEP (Association internationale des experts en philatélie)) | Attest | Michel | 5 |
| Liniger, Werner (AIEP (Association internationale des experts en philatélie)) | Attest | Michel | 12 |
| Lippschütz, Alfred (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | Block 1 A; 1 B |
| Lippschütz, Alfred (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 19 |
| Lippschütz, Alfred (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 68 - 70 |
| Lippschütz, Alfred (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 219 |
| Lippschütz, Alfred (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 231 |
| Lippschütz, Alfred (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1425 DD |
| Lischeck, Alfred (Sonstiges) | Attest | Michel | IV |
| Longhi, Fiorenzo (AIEP (Association internationale des experts en philatélie)) | Attest | Michel | 126 |
| Longhi, Fiorenzo (AIEP (Association internationale des experts en philatélie)) | Attest | Michel | 211 A |
| Louis, Karl-Albert (BPP (Bund Philatelistischer Prüfer)) | Befund | Michel | 1 c |
| Louis, Karl-Albert (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1 b |
| Louis, Karl-Albert (BPP (Bund Philatelistischer Prüfer)) | Prüfermitteilungen | Michel | 3 |
| Louis, Karl-Albert (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 35 b |
| Louis, Karl-Albert (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 36 |
| Louis, Karl-Albert (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 83 ay |
| Louis, Karl-Albert (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 17I ; 19 II b |
| Louis, Karl-Albert (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | GB 17I; 19 IIb |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 45 |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 71 |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 784 (x) |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 58 |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 64 P |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 77 P |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 85 II |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 204 P |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 646 P I |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 646 PI |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 646 P VI |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 784 x P |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 832 Essay |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 865 |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 887 |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 114 E |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 3 I |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 3 II |
| Ludin, Emil (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 3 I K |
