Bryan Donkin, English inventor, 1829.

Lithograph by Grenedon of Donkin (1768-1855), printing and food-preserving pioneer. Donkin improved on Appert's proces for preserving food by using tins instead of glas jars. He worked with Fourdrinier on an automatic paper-making machine. He also invented the polygonal printing machine and the composition printing-roller, and won a gold medal from the Society of Arts for inventing a counting engine and a machine for measuring velocities of rotation. From the Phillimore Collection at the Science Museum, London. Dimensions: 365mm x 488mm.