Civil engineering: diagrams of canal locks and pressure-regulating mechanisms. Engraving by G. Daws.

    Date:
    27 March 1800
    Reference:
    44540i

    Licence: Public Domain Mark

    Credit: Civil engineering: diagrams of canal locks and pressure-regulating mechanisms. Engraving by G. Daws. Wellcome Collection. Source: Wellcome Collection.

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