This section is from the "A Complete Dictionary of Dry Goods" book, by George S. Cole. Also available from Amazon: A complete dictionary of dry goods and history of silk, cotton, linen, wool and other fibrous substances,: Including a full explanation of the modern processes ... together with various useful tables.
Janus Cloth. [From Janus, a god in Roman mythology, who is repre-presented as having two faces]. A textile fabric, the color of one face of which is different from that of the other; used for reversible garments.