Schubert calculator - Catawiki
Comptator. 1920's. Germany. Schubert & Salzer. Box wood. Calculator
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SCHUBERT_DRV
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Schubert - Jaap's Mechanical Calculators Page
Schubert - Jaap's Mechanical Calculators Page
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Schubert | A Collection of Mechanical Calculators
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Schubert - Jaap's Mechanical Calculators Page
Comptator. 1920's. Germany. Schubert & Salzer. Box wood. Calculator
