Includes key on title page and "Guide map of the city of Plainfield, New Jersey, Union Co., N.J." sheet coverage key followed by 9 pages of fire insurance maps.; "Entered according to act of Congress, in the year 1874 by William A. Miller in the office of the Librarian of Congress at Washington."This insurance atlas of Plainfield, New Jersey was prepared for and submitted to the Librarian of Congress by William A. Miller. The atlas, like the more famous Sanborn fire insurance maps, includes a key with indications of building materials and other important features. The nine pages of maps included in the atlas cover neighborhoods, industrial complexes, and waterways throughout the city. These maps would have been used by fire insurance compan...