COAL AGE; WITH WHICH IS CONSOLIDATED THE COLLIERY ENGINEER; DEVOTED TO COAL MINING AND COAL MERCHANDISING, EXTRATION METHODS, EQUIPMENT AND MINING NEWS, MARKET REPORTS, PRICES AND STATISTICS OF THE COAL INDUSTRY; VOLUME XVIII, JULY 1 TO DECEMBER 30, 1920
New York: McGraw-Hill Company Inc., 1920. Hardcover. The weekly issues from July 1 to December 30, 1920, bound into a single volume. 1358 pages with news and information on coal, photographs, equipment and building diagrams, locomotive coaling towers, coal for locomotives, below ground mine maps, production methods and amounts produced..... More