Item 4153 - Middle Street and Portland Exchange, ca. 1850 Item 4153 - Middle Street and Portland Exchange, ca. 1850 Contributed by Maine Historical Society Item 4153 Zoom 4332px x 3226px - 14.4"w x 10.8"h @ 300dpi | Need a larger size? *Credit line must read: Collections of Maine Historical Society Image Info This image shows Middle Street at Exchange Street in about 1850. The domed building is the Portland Exchange, which burned in 1854. A sign for "Jacob Golder Furniture" is visible. Show Details