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  • 21 Aug, 2019

  • By, Wikipedia

File:IllinoisTunnelMap1902.png

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Date/TimeThumbnailDimensionsUserComment
current02:47, 22 March 2010Thumbnail for version as of 02:47, 22 March 2010498 × 845 (64 KB)Douglas W. Jones{{Information |Description={{en|1=Original Caption: "Showing Conduits as Completed Sept 1. 1902." Retouched to remove spots and improve legibility. The short side spurs terminating in dots are the shafts used to construct the tunnel system.}} |Source=G

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