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	Search results for Pipes    Refine your search Try advanced search results 1-1 of 1 item(s)  page 1 of 1 : ( <<  1  >> ) :: previous : next select all : clear all : add to favorites   Image: Title: Subject: Full Description: 1. [Great Northern - Cascade Tunnel construction] Great Northern Railway; Cascade tunnel; A. Guthrie and Co.; Berne, WA; Chelan County; worker, railroad construction; construction, railroad; machinery, railroad construction; pipe, water; ventilation Ventilator pipes were needed to suck out foul air and blow in fresh air during the Cascade Tunnel construction. select all : clear all : add to favorites results 1-1 of 1 item(s)  page 1 of 1 : ( <<  1  >> ) :: previous : next
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