Power-loom weaving and yarn numbering : according to various systems, with conversion tables : an auxiliary and text-book for pupils of weaving schools, as well as for self-instruction, and for general use by those engaged in the weaving industry
A 1900 London and New York technical manual by Anton Gruner for pupils of weaving schools and workers in the weaving industry, covering power-loom weaving, yarn numbering systems and conversion tables. The pictures are grid diagrams of weave draft plans: red and black squares marking warp and weft lifts across rows and columns, with a comparison of actual woven cloth against its blue pattern card, a layout a designer could borrow for geometric grid patterns and checkered textile motifs.
