Printer's progress

"Surveys of the years 1851 and 1951 endeavour to sum up the materials, machinery, reproduction and printing processes, the printer's appreciation of design, and his economic and social background ... In displaying the printer's progress of the years 1851 and 1951 side by side, without including the intermediate phases, it is hoped that ... a clear realization will have been given of both the aesthetic and technical differences"--Introduction.