| Issuer | Poland |
| Year | 2004 |
| Type | Non-circulating coins |
| Value | 20 Zlotys (20 Złotych) |
| Currency | Fourth Zloty (1995-date) |
| Composition | Silver (.925) (with amber) |
| Weight | 28.28 g |
| Dimensions | 38.6 mm |
| Thickness | |
| Shape and Technique | Round Milled |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | Y#504 |
| Obverse description | Stylised view of the Senate debating chamber. Image of the Eagle, established as the state Emblem of the Republic of Poland. |
| Obverse script | Latin |
| Obverse lettering | 20 ZŁ mw 2004 RZECZPOSPOLITA POLSKA |
| Reverse description | Image of the Speaker`s mace with amber on the righthand side. Centre in the background, stylised image of the Eagle from the bas-relief in the seat of the Senate of the Republic of Poland. |
| Reverse script | Latin |
| Reverse lettering | 15-LECIE SENATU III RP |
| Edge | Smooth |
| Mint | (MW) Mint of Poland (Mennica Polska),Warsaw, Poland (1766-date) |
| Mintage | 2004 MW - Proof - 67 000 |
| Catalog ID | 8549593300 |
| Comments |
