Estudo ethnographico : a proposito da ornamentação dos jugos e cangas dos bois nas provincias portuguesas do Douro e Minho
An 1881 Portuguese ethnographic study published in Porto by José Leite de Vasconcellos, documenting the decorative carving on oxen yokes and cangas from the Douro and Minho provinces. The plates are numbered line drawings of motifs, including crosses, stars, rosettes, birds and stylised figures, which a designer could use as folk-art ornament sources for carved wood or rustic pattern work.
