Civil engineering: a steam-powered dredger in side elevation and plan, with details of the scoop. Engraving by Gray & son after G. Whitelaw.

    • Whitelaw, George.
    Reference:
    44544i

    Licence: Public Domain Mark

    Credit: Civil engineering: a steam-powered dredger in side elevation and plan, with details of the scoop. Engraving by Gray & son after G. Whitelaw. Wellcome Collection. Source: Wellcome Collection.

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