Engraving of beam engine The appearance of the engine is similar to that of D5029/19/13 (Samuel Halls patent Improvements on Steam Engines, 1834). Scale 3/4 inch: 1 foot Notes on the drawing give the name "Baxter" and address "3 Charter House Square". The 1843 Kelly's Directory of London gives this as the address of George Baxter, "engraver, inventor and patentee of printing in oil colours". The document also bears a handwritten note "From Middleton". [early 19th Cent]