Item 12318 - Portland City Hall plans, 1909 Item 12318 - Portland City Hall plans, 1909 Contributed by Maine Historical Society Item 12318 Zoom 6400px x 7200px - 21.3"w x 24.0"h @ 300dpi | Need a larger size? *Credit line must read: Collections of Maine Historical Society Image Info Architects Carrere & Hastings of New York City drew this key plan to the designation of sections of the new Portland City Hall. The building at Exchange and Myrtle streets was designed to replace the structure that burned in an electrical fire January 24, 1908. Show Details