Handbook--standard and approved American coal mining methods--practice--equipment

Handbook--standard and approved American coal mining methods--practice--equipment American Mining Congress creator text dcu Washington, D.C 1927] 1927 monographic eng 2 p. l., [293] p. incl. illus., fold. plates, tables (part fold.) diagrs. (part fold.) 18 cm. Cover-title. Loose leaves. Part of the plates, diagrams, and tables are numbered as 1 page. Paged at foot A-1 to A-28, 1 leaf, B-1 to B-51, etc. "Published by the American Mining Congress ... Washington, D. C., under the supervision of its National Standarization Division, Coal Mining Branch." n-us--- Coal mines and mining TN802 .A5 ca 28000148 DLC 860401 20260227111119.0 ca 28000148