Sanborn Maps
collection of detailed maps of cities and towns in the United States (with a few exceptions) published by the Sanborn Map Company in the late 19th and early 20th centuries
en-GB/sænbɔːn ˈmæps/
en-US/ˈsænˌbɔɹn ˈmæps/
collection of detailed maps of cities and towns in the United States (with a few exceptions) published by the Sanborn Map Company in the late 19th and early 20th centuries