Model (scale 1:4), of double blast steam powered threshing machine, with two removable mahogany side panels, to reveal the inner workings, by Mr Hailstone, England, 1860-1880. The model represents a double blast steam powered threshing machine, the type of which were made between 1850 and 1860 by Wallis, Haslam & Steevens, Hampshire, England, and Clayton and Shuttleworth, Lincoln, Suffolk, England. Model (scale 1:4), of double blast steam powered threshing machine, with removable panels 1850-1860