ScientificAmerican1903-05-23.jpg Scientific American 1903-05-16ThumbnailsScientific American 1903-05-30Scientific American 1903-05-16ThumbnailsScientific American 1903-05-30Scientific American 1903-05-16ThumbnailsScientific American 1903-05-30Scientific American 1903-05-16ThumbnailsScientific American 1903-05-30Scientific American 1903-05-16ThumbnailsScientific American 1903-05-30

The anthracite coal industry. Breaker head. Underground office. Vein, thickness. Boys employed in the breaker rooms. Coal loading machine.



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner