| Description | Written from 69 Mornington Road, Regents Park, London. The letter explains which part of Griffiths' patent for a screw propeller he thinks Brunel has infringed for the screw of the big ship and regrets that Brunel seems to have forgotten a key part of their conversation several years previously which specifically touched on what Griffiths would consider to be an infringement of his patent. Griffiths also requests Brunel send him a drawing of Brunel's screw. |