Firma J.A.P.B. Zuurdeeg Antique brass balance weights – 20 identical calibration marks - Brass, Wood - 1920-1930

These antique brass balance weights from Firma J.A.P.B. Zuurdeeg, dating between 1920 and 1930, are precision calibration weights used to standardize accuracy in scales and balances. The uniformity with 20 identical calibration marks suggests use in professional or industrial settings where precise mass measurement was critical. The combination of brass and wood materials reflects manufacturing practices of the period, where brass provided durable, corrosion-resistant weight and wood cases or components offered protection and ease of handling. Antique calibration weights are collectible for their historical importance in science, commerce, and applied metrology, representing the evolution of measurement standards.