Design texts
Design texts is a 1910 textile design manual by Fenwick Umpleby, printed in Lowell, Massachusetts by the Lawler Printing Co., for mill designers and weavers. Its pictures are grids of black and white squares that map out woven or knitted patterns, with the blocks of dark and light cells forming the repeat. A designer could borrow these checkerboard-like structures as ready-made geometric repeats for fabric or pixel-style graphics.
