Hermann Ludwig Ferdinand von Helmholtz. Reproduction of a wood engraving, 1937 or 1938.

    Date:
    [1937 or 1938]
    Reference:
    568806i
    Catalogue details

    Licence: In copyright

    Credit: Hermann Ludwig Ferdinand von Helmholtz. Reproduction of a wood engraving, 1937 or 1938. Wellcome Collection. Source: Wellcome Collection.

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