Sujet
Mr. A. Langerfeld and one of his machines for picking coal which does away completely with the use of breaker boys. 1913
Légende
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. Location: Scranton, Pennsylvania.
Date
1913
Crédit
Photo12/Universal Images Group
Notre référence
UMG20A67_389
Model release
Non
Property release
Non
Licence
Droits gérés
Format disponible
41,3Mo (1,2Mo) / 38,1cm x 27,1cm / 4500 x 3204 (300dpi)