Cyanotype print. Description on reverse: I. & M. Canal Rock excavation at the Guard Lock (head of rapids) U.S. Govt work David Sears – contractor J.W. Woermann – Engr. in charge October 1892
Image 26: October 1892
1892-10
picture
Canal constructionHennepin Canal (Ill.)Hennepin Canal (Ill.)--History
Illinois
1890-1899
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