| Prüfer | Art der Urkunde | Katalog | KatalogNr. |
|---|
| Bach, Jean-Paul, und Eichele, Martin (BPB (Briefmarkenprüfstelle Basel)) | Attest | Michel | 397 DD |
| Frenkel, Dmitry (Sonstiges) | Attest | Michel | 54 I |
| Frenkel, Dmitry (Sonstiges) | Attest | Zagorskij | 98 K a |
| Frenkel, Dmitry (Sonstiges) | Attest | Zagorskij | 256; 257 |
| Frenkel, Dmitry (Sonstiges) | Attest | Zagorskij | 482 a |
| Frenkel, Dmitry (Sonstiges) | Attest | Zagorskij | 1381 |
| Frenkel, Dmitry (Sonstiges) | Attest | Zagorskij | 1898 |
| Hovest, Ludger (VP (Verband Philatelistischer Prüfer)) | Attest | Michel | 247 P |
| Hovest, Ludger (VP (Verband Philatelistischer Prüfer)) | Attest | Michel | 278 II Ax II |
| Hovest, Ludger (VP (Verband Philatelistischer Prüfer)) | Attest | Michel | 390; 391 C |
| Hovest, Ludger (VP (Verband Philatelistischer Prüfer)) | Attest | Michel | 529 Y; 530 Y; 531 Y |
| Hovest, Ludger (VP (Verband Philatelistischer Prüfer)) | Attest | Michel | 587 U |
| Hovest, Ludger (VP (Verband Philatelistischer Prüfer)) | Attest | Michel | 2474 A I |
| Leupold, Wolfgang (Sonstiges) | Attest | Michel | 513 - 522 |
| Leupold, Wolfgang (VÖB (Verband Österreichischer Briefmarkenprüfer)) | Attest | Michel | 20 |
| Liapine, Victor (Sonstiges) | Attest | Michel | |
| Liapine, Victor (Sonstiges) | Attest | Michel | 5283 II |
| Mandrowski, Nicolai (Sonstiges) | Attest | Michel | 156 |
| Mandrowski, Nicolai (Sonstiges) | Attest | Michel | 456 C |
| Mandrowski, Nicolai (Sonstiges) | Attest | Michel | 482 B |
| Mikulski, Zbigniew S. (AIEP (Association internationale des experts en philatélie)) | Attest | Michel | XVII/I |
| Raritan, Stamps Inc. (Sonstiges) | Attest | Scott | 53 |
| Raritan, Stamps Inc. (Sonstiges) | Attest | Scott | 63 |
| Raritan, Stamps Inc. (Sonstiges) | Attest | Scott | 149 |
| Raritan, Stamps Inc. (Sonstiges) | Attest | Scott | 224 |
| Raritan, Stamps Inc. (Sonstiges) | Attest | Scott | 616 A |
| Raybaudi, Experts (Prüferkommission) | Attest | Sassone | 20/I; 21/I |
| Rossica, The Society of Russan Philately (Prüferkommission) | Attest | Scott | C 68 b |
| Sismondo, Sergio (Sonstiges) | Attest | Scott | C 68 |
| Wassmann, Dieter (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 553 Hy |
| Wassmann, Dieter (BPP (Bund Philatelistischer Prüfer)) | Attest | Michel | 1575; 1577; 1580; 1581; 1582 - 1584; 1589; 1590 |
| Zagorsky, Valery Borisowitsch (AIEP (Association internationale des experts en philatélie)) | Attest | Scott | 2145 |
