Scientific Researches! - New Discoveries in Pneumaticks! - or, an Experimental Lecture on the Powers of Air 1802
Leaflet for a work entitled 'Cases of successful practice with Perkin's Patent Metallic Tractors'. 1801
Drawing. Wrapper from a packet addressed James Watt Esqre / Heathfield / Soho / Birmingham. On the other side, a light pencil sketch with annotations: “friction roller” – “ fast on the socket” – “friction roller” – “fast on the frame[?]” 9" x 7 ¼"laid paper, no watermark. Pencil sketch with annotations: “friction roller” – “ fast on the socket” – “friction roller” – “fast on the frame[?]” 1804-1812
Drawings of proportional sculpture copying machine by James Watt. Drawing, two views, proportional sculpture copying machine layout 1804-1812