|   In the book (a facsimile c1892) there is inserted a page from a Quaritch 
        catalogue October 1911 (no.309). The scans above are in the exact sequence 
        of the book which measures 21 x 34cms. Go to the right hand image of the 
        top row for the Complete List of Etchings.  Salomon de Caus, an illustration to Les Raisons des Forces Mouvantes avec diverses Machines, Paris 1674
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