MINING: Anthrofright
When anthracite coal hit a production peak of 99,611,811 tons in 1917, the industry was Pennsylvania's No. 1 source of income. By 1932 it was…
Source: time.com
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When anthracite coal hit a production peak of 99,611,811 tons in 1917, the industry was Pennsylvania's No. 1 source of income. By 1932 it was…