Item 5647 - Lecture Hall, Portland High School, ca. 1920 Item 5647 - Lecture Hall, Portland High School, ca. 1920 Contributed by Maine Historical Society Item 5647 Zoom 4300px x 3366px - 14.3"w x 11.2"h @ 300dpi | Need a larger size? *Credit line must read: Collections of Maine Historical Society Image Info The lecture hall at the "new" Portland High School was considered the crowning achievement of the designers, Miller and Mayo of Portland. The school opened for classes in February 1919, progress having been delayed by World War I. Show Details