50 000 Mark Duisburger Kupferhütte

正面描述	Typeset text printed in black over a light mauve underprint with white lettering elements. Serial numbers appear on both sides of the central legend block. A rectangular red overprint stamp indicates the note's validity period.
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背面描述	The reverse is essentially plain, printed on uncoated paper with no design elements. Faint show-through of the obverse text is visible due to the thin paper stock, and denomination numerals appear ghosted at upper left and right corners from the obverse underprint.
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备注	Duisburger Kupferhütte was one of Germany's major copper smelting and refining operations, located on the Rhine in Duisburg. During the hyperinflation peak of 1923, large industrial employers routinely issued their own emergency currency — Notgeld — to pay workers when Reichsbank notes were either unavailable in sufficient quantity or worthless by the time payroll was processed. This note was functional wage currency, not a collector issue. The 50,000 Mark denomination places it in the mid-hyperinflation window, before denominations climbed into the billions later that autumn.

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