File:U-505 at MSI Chicago Illinois, USA, Port Bow Torpedo Tube.jpg - Wikimedia Commons
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File:U-505 at MSI Chicago Illinois, USA, Aft Torpedo Tubes.jpg - Wikimedia Commons
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Chicago Tube & Iron – Quality Products and Services Since 1914
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The Pneumatic Tube Room at department store Marshal Fields in Chicago, IL. Tubes whisks transaction in 90 seconds, 1947 Stock Photo - Alamy
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TPJ's 2012 Industry Award Winner: Chicago TubeandIron
