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|Genre/Form:||Fire insurance maps
|Material Type:||Clipart/images/graphics, Internet resource|
|Document Type:||Internet Resource, Map, Computer File|
|All Authors / Contributors:||Sanborn Map Company.; ProQuest Information and Learning Company.; Environmental Data Resources, Inc.|
|Description:||Electronic resource : maps.|
|Details:||Mode of access: World Wide Web.|
|Other Titles:||Sanborn maps 1867-1970|
Includes textual information on construction details (for example, steel beams or reinforced walls), building use (ranging from symbols for generic terms such as stable, garage, and warehouse to names of owners of factories and details on what was manufactured in them ; in the case of large factories or commercial buildings, even individual rooms and the uses to which they were put are recorded on the maps), and other building features (such as pipelines, railroads, wells, dumps, and heavy machinery).