The History of Paper Sacks, 100 Jahre Papiersackmaschinen und Papiersäcke published 1988, in what I imagine is a limited edition. It celebrates the work of Hermann Hölscher 1842-1913, inventor of the first triangle bag machine and Gustav Fischer 1850-1939, inventor of the first machine for cement sacks. Both went on to form companies which continued… Read More Possibly the dullest book on my shelf