Zeitgemässe Töne auf Damentuch
A trade sample card published by Leopold Cassella & Co. of Frankfurt am Main in 1890, presenting dye formulas for fashionable shades on ladies' woollen cloth for the textile trade. The single plate shows five labelled colour swatches, from near-black to deep violet-blue, each with its dye recipe in percentages set beside it. A designer could take from it the tonal range of dark wool dyes and the compact way dye samples were tabulated for clients.
