| Description | On the same sheet: Transcript of letter. James Watt Jr. (London) to Robert Smirke. 15 Sep. 1818.Transcript of letter. George Rennie (Royal Mint) to James Watt Jr. 3 Sep. 1818.Docketed “Letter to Mr. Smirke and answer about engine for Penitentiary. Mr. Rennie’s estimate of mill. Design of pumps enclosed for prison.” |