Image: Boats hauling coal
Boats_hauling_coal.jpg (720 × 495 pixels, file size: 235 KB, MIME type: image/jpeg)
Description: Boats were used to haul coal
Title: Boats hauling coal
Credit: Boats hauling coal (ship is United States Gypsum, launched 1910, under this name 1939-1973[1])
Author: National Institute for Occupational Safety and Health (NIOSH) from USA
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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