L'art du teinturier-coloriste, sur laine, soie, fil et coton ... suivi d'une concordance chimico-tinctoriale
A French dyers' manual by Auguste Vinçard, published in Paris in 1820, written for dyers working in wool, silk, thread and cotton. Its single plate is a large printed chart, a 'Tableau tonique' with a triangular diagram of the six principal colours and their ranked tints, framed by bordered text panels above and below, useful to a designer wanting an early systematic colour-wheel layout.
