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NGZ test note - 100 Deutsche Mark
| Issuer | NGZ (Nadel-Geldverarbeitungs-Zentrale) |
|---|---|
| Year | |
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| Size | 154 x 74 mm |
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| Obverse description | The obverse carries portrait vignettes of Paul Ehrlich, Clara Schumann, and Carl Friedrich Gauß — drawn from the 200, 100, and 10 Deutsche Mark series respectively — arranged left to right. The denomination 100 is repeated in the underprint alongside the dates 1777–1855 and the inscription CARL FRIEDR. GAUSS. Overprinted diagonally in red: UNGÜLTIG (invalid), with NGZ TESTNOTE / TEST NOTE lettering across the face. |
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| Obverse lettering | NGZ TESTNOTE TEST NOTE 100 UNGÜLTIG 100 1777 -1855 Carl Friedr. Gauß 100 (Translation: NGZ test note test note 100 invalid 100 1777 -1855 Carl Friedr. Gauß 100) |
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| Comments |
NGZ — Nadel-Geldverarbeitungs-Zentrale — was a West German firm specializing in high-speed banknote processing and sorting equipment. Test notes of this type were produced for calibration and demonstration purposes, not for any monetary authority, and were never intended to circulate. They exist to prove a machine works, not to function as money.
Collector interest is narrow but genuine, largely from those documenting the mechanical infrastructure of mid-to-late twentieth century cash handling.