LOIR (Joanny). Theory of silk weaving. Lyon: Desvigne & Paris, Desforges, 1923-1928. - Three volumes in 5 folio volumes, 371 x 286. Marbled half-brown basane with corners, gilt fillet on spines and corners, ornate spine bands, red heads, covers and spine preserved (period binding). First edition of this technical reference work on silk weaving. Originally intended for students at weaving schools, this series presents the various ways of treating materials, working them, and everything needed for silk weaving. The first volume is illustrated with 69 technical plates and numerous black illustrations in the text. The next two volumes contain 150 colored fabric samples, including 7 doubles, accompanied by analysis, black and colored screens, assembly diagrams and information on warping, smoothing, reducing, dyeing, etc. Table of contents at the end of volume III. A public education officer, Joanny Loir (1854-1935) was a weaving teacher at the École supérieure de commerce de Lyon and at the Société d'Enseignement professionnel du Rhône. Joints and covers rubbed.