Nicholas Joseph, Freiherr von Jacquin, and his brother Joseph Franz. Line engraving by Mathieu, 1802, after a wax medallion by L. Posch.

    • Posch, L.
    Date:
    1802
    Reference:
    545729i
    Catalogue details

    Licence: Public Domain Mark

    Credit: Nicholas Joseph, Freiherr von Jacquin, and his brother Joseph Franz. Line engraving by Mathieu, 1802, after a wax medallion by L. Posch. Wellcome Collection. Source: Wellcome Collection.

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