Our City in Sanborns: The City of Ottawa in Sanborn Fire Insurance Maps, 1884-1924 Now through July 2022 at the Old Depot Museum The Sanborn Fire Insurance Maps were first published in the 1860s to help fire insurance agents assess risk to commercial, industrial, and residential buildings and properties. Sanborn ultimately printed more than 50,000 editions of maps for 12,000 U.S. towns and cities through the 1950s. Because these maps were expensive—ranging in price from $12 to $200 depending on the year and the size of the city—communities often…
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