The Bureau of Mines collecting coal samples during war work. This image shows the crushing and screening of the gross sample of coal. Photograph taken in November 1918.

---

Size: 8448px × 5862px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: .., 1, 1918, 56584, activities, american, analysis, assessment, au, bureau, coal, collection, crushing, development, economy, effort, energy, engineering, equipment, exploitation, extraction, fuel, geology, handling, industrial, industry, infrastructure, logistics, machinery, management, material, military, mineral, mines, mining, nov., operations, photographer, photographs, procedures, process, processing, production, quality, research, resource, resources, sample, samples, scree, screening, supply, sustainability, systematic, techniques, technology, war, war-time, wartime, work, world