EditorialDecimal calculations for length, area and body masses, Fig. 1: Presentation of the length mass, Fig. 2: Presentation of the area Maase, Fig. 3: Presentation of the body dimension, Fig. 4: Multiplication, Fig. 5: Measurement of the height by the shadow,...
EditorialDecimal Scale, White metal drawing scale of 100 mm, one-on-one, in a wooden box with green sheet lining., D. van den Bosch (mentioned on object), Rotterdam, 1821, wood (plant material), brass (alloy), cloth, h 1.5 cm ? w 16 cm ? d 6.2 cm.
EditorialMedal metric system, 1840 with plastic holder, Bronze medallion system (reference) with inscription. In plastic holder. Issued on the occasion of the introduction on 1 January 1840 of the exclusive use of the decimal units of measurement under the law ...
EditorialDecimal Scale, Brass drawing scale of 100 mm, one on one, in a wooden box with a green sheet lining., D. van den Bosch (mentioned on object), Rotterdam, 1821, brass (alloy), wood (plant material), cloth, h 1.6 cm ? w 16 cm ? d 6.2 cm.