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19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure
19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure
19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure
19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure
19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure
19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure
19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure
19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure
19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure
19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure

19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure

$ 422.39

Availability: 100 in stock
  • Original/Reproduction: Original
  • All returns accepted: ReturnsNotAccepted
  • Time Period Manufactured: Pre-1930

    Description

    19th Century Ross Mensuration Sphere, Geometrical Mass Volume Measure. Very rare 1880-1900 measuring device, a Ross Mensuration Ball Block for measuring solids. It shows mass and density. It's a solid hand carved wood ball, with gorgeous patina and leather strapping, that opens up into triangular pieces. It has leather seams and early brass screws. It measures about 8" tall, is quite heavy, measures 24" circumference. Maple Wood is well worn with soft edges. Ball is held together with a wire wrapped around several brass pins at one end. Originally was a silk string. It appears Well used as a mathematical geometry teaching tool. Mensuration is the science of numerical representation of geometrical magnitudes.
    Unusual, fantastic, steampunk.....rare....
    Please email any questions prior to bidding. Photos are part of the description so please review carefully.