smokestack
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No known copyright restrictions(著作権制限なし)

Steel and concrete go into place rapidly as a new steel mill takes form, Columbia Steel Co., Geneva, Utah. The new plant will make important additions to the vast amount of steel needed for the war effort (LOC)
by The Library of Congress
by The Library of Congress
No known copyright restrictions(著作権制限なし)
No known copyright restrictions(著作権制限なし)
![[Train and several sets of railroad tracks in the snow, Massachusetts] (LOC)](http://farm3.static.flickr.com/2113/2179043086_26d3dbecde_m.jpg)
[Train and several sets of railroad tracks in the snow, Massachusetts] (LOC)
by The Library of Congress
by The Library of Congress
No known copyright restrictions(著作権制限なし)

A starch factory along the Aroostook River, Caribou, Aroostook County, Me. (LOC)
by The Library of Congress
by The Library of Congress
No known copyright restrictions(著作権制限なし)
No known copyright restrictions(著作権制限なし)
No known copyright restrictions(著作権制限なし)
No known copyright restrictions(著作権制限なし)
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