A mahogany portable copying machine by James Watt & Co, circa 1795

with brass roller, detachable handle, original wetting and drying books, Wedgwood stamped basalt inkwell, and white metal oval label marked 'J. Watt & Co. Patent', 38cm wide, 29.5cm deep, 12.5cm highProvenance: Probably acquired from Thomas Heneage Art Books, London