Report of the International congress for the unification of the numbering of yarn, held at the International exposition, Paris, September 3-4, 1900
Congrès international pour l'unification du numérotage des fils, Paris, 1900. [from old catalog]; Roy, Ferdinand. [from old catalog]; Woodbury, Charles Jeptha Hill, 1851-1916. [from old catalog]; Paris. Exposition universelle, 1900. [from old catalog]