Pattern book
A manuscript pattern book by William C. Grimes, dated 1831, compiled as a reference of weaving drafts for handloom weavers. The pages show hand-ruled weave drafts, with squared grids of dots for the threading and lined diagrams of diamond and zigzag treadling sequences. A designer could take from them the geometric rhythm of diamond and twill repeats, rendered as simple ink line on aged paper.
