| Issuer | German Democratic Republic |
|---|---|
| Year | 1988 |
| Type | Non-circulating coin |
| Value | 20 Mark (20 DDM) |
| Currency | Mark (1948-1990) |
| Composition | Silver (.625) |
| Weight | 20.9 g |
| Diameter | 33.0 mm |
| Thickness | 2.80 mm |
| Shape | Round |
| Technique | Milled |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | Sneschana Russewa-Hoyer, Heinz Hoyer |
| In circulation to | 1990 |
| Reference(s) | KM#124 |
| Obverse description | |
|---|---|
| Obverse script | Latin |
| Obverse lettering | * DEUTSCHE DEMOKRATISCHE REPUBLIK * A 1988 20 MARK |
| Reverse description | Microscope by Carl Zeiss (1879) |
| Reverse script | Latin |
| Reverse lettering | CARL ZEISS 1816-1888 |
| Edge | Smooth with inscripion |
| Mint | |
| Mintage |
1988 A - - 37 020 1988 A - Proof - 3 501 |
| Numisquare ID | 4334634680 |
| Additional information |
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