Title: Agreement by and between the Illinois Coal Operators Association, the Coal Operators Association of the Fifth and Ninth Districts of Illinois, and the Central Illinois Coal Operators Association, and the United Mine Workers of America, District Number 12, for the period beginning November 1, 1917, and extended during the continuation of the war, and not to exceed two years from April 1, 1918
Subjects: Collective labor agreements, Coal mining industry, Coal miners
Places: Middle West