Item 13031 - Gray's Business College, Portland, ca. 1900 Item 13031 - Gray's Business College, Portland, ca. 1900 Contributed by Maine Historical Society Item 13031 Zoom 4611px x 3232px - 15.4"w x 10.8"h @ 300dpi | Need a larger size? *Credit line must read: Collections of Maine Historical Society Image Info Gray's Portland Business College and the insurance office of R. Cutler Libby in the Davis Building, 390 Congress Street, opposite the City Building. Show Details