"Chicago Packing Houses and Union Stock Yards"; combined version of sheets 3 and 4, comprising the general view. Library of Congress copyright deposit entry dated September 30, 1901. This image was constructed from exact photographic copies of the original images.
<ul><li>Sanborn-Perris Map Co. Ltd., New York City</li>
<li>derivative work: <a href="//commons.wikimedia.org/w/index.php?title=User:Fpo&amp;action=edit&amp;redlink=1" class="new" title="User:Fpo (page does not exist)">Fpo</a> (<a href="//commons.wikimedia.org/w/index.php?title=User_talk:Fpo&amp;action=edit&amp;redlink=1" class="new" title="User talk:Fpo (page does not exist)"><span class="signature-talk">talk</span></a>)</li></ul>
ProQuest Information and Learning's Digital Sanborn Maps, 1867-1970