| Description | Briggs Thurburn & Co. (London) to Boulton Watt & Co. 15 May 1833. Boulton Watt & Co. to Briggs Thurburn & Co. (Gould Square, London). 16 May 1833. Docketed “Messrs. Briggs & Thurburn to Boulton Watt & Co. on subject of 120 horse engines. Boulton Watt & Co. reply 16 May.” |