Engineering: large cogs meshing together, and diagrams of epicycloid curves. Coloured lithograph, 1905, by Stanislas Petit.

    Date:
    1905
    Reference:
    46090i

    Licence: Public Domain Mark

    Credit: Engineering: large cogs meshing together, and diagrams of epicycloid curves. Coloured lithograph, 1905, by Stanislas Petit. Wellcome Collection. Source: Wellcome Collection.

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