Search Constraints

You searched for: Medium print Remove constraint Medium: print Topical Subjects Coal miners. Remove constraint Topical Subjects: Coal miners. Topical Subjects Coal Mines and Mining--Miners at Work. Remove constraint Topical Subjects: Coal Mines and Mining--Miners at Work. Topical Subjects Mine gases--Measurement. Remove constraint Topical Subjects: Mine gases--Measurement.
Number of results to display per page

Search Results

Miner tests for gas in mine.
'West Virginia has produced 20 percent of all the coal mined in the United States since 1800, a survey shows. The survey, by the Bituminous Coal Institute, also showed that during the 20 years from 1930 through 1949, West Virginia led all states in soft coal production. Picture courtesy of the W. Va. Dept. of Labor.'
Man tests for gas at the Jamison No. 9 Mine.
Miner tests for gas in mine.
Two miners test for gas in mine. Hamilton Wright Organization Inc.  80 Rockefeller Plaza, New York City, 'Newspaper Feature News' This photograph released to you GRATIS for editorial use only. Do not use for advertising purpose without written permission.
Miner tests for gas in mine.