This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Photograph of the Heating Plant NARA .tif Scope and content Original caption View of the heating plant which furnishes heat and steam to operate the extractory kilns Kirkpatrick is shown at the right adjusting the control valves for pipes leading from the furnace to the kilns General notes Local identifier Department of Agriculture