<i>Title:</i> Mr. A. Langerfeld and one of his machines for picking coal which does away completely with the use of breaker boys. The percent of slate that goes in with the coal separated by this machine is 1% to 2%, where the percent with the old primitive method of using boys is from 15% to 60%. This picture was taken at the breaker of the Spencer Coal Co., at Scranton, Pa., on March, 18, 1913.
<p><i>Abstract:</i> Photographs from the records of the National Child Labor Committee (U.S.)
<i>Physical description:</i> 1 photographic print.
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<i>Notes:</i> Men.; Coal mining.
Hine, Lewis Wickes; National Child Labor Committee Collection
<p>Library of Congress
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<ul><li><i>Catalog:</i> <a rel="nofollow" class="external free" href="https://www.loc.gov/pictures/item/ncl2004001182/PP">https://www.loc.gov/pictures/item/ncl2004001182/PP</a></li>
<li><i>Original url:</i> <a rel="nofollow" class="external free" href="http://hdl.loc.gov/loc.pnp/nclc.05511">http://hdl.loc.gov/loc.pnp/nclc.05511</a></li></ul>