A 1929 article by Fritz Keunecke of Barmen, Germany, explaining how fancy lace is made on machines and how the process relates to hand bobbin lace. It covers the machine gauges and speeds, the Jacquard-controlled bobbin plates and guide mechanisms, and one-thread versus multiple-thread machines. Much of the text deals with thread tension devices, comparing weighted bobbins with helical-spring bobbins, including spring 'lot' ratings and tension figures. Illustrated with diagrams of bobbin interlacing, machine sections, and bobbin mechanisms, plus photographs of a Jacquard lace machine and lace samples.