Melliand's Textilberichte
Melliand's Textilberichte is a 1923 German trade periodical on the textile industry, published in Mannheim by its own press for mill managers, engineers and textile merchants. Its pictures are plain black-and-white line drawings and photographs of machinery, showing a printing or card-type machine, a four-cylinder engine, a multi-bar warp or weaving frame, and a sectioned water meter with its impeller, useful to a designer wanting mechanical diagram vocabulary.
