Item 85452 - Ewing property, W. side Sunset Avenue, Great Diamond Island, Portland, 1924 Item 85452 - Ewing property, W. side Sunset Avenue, Great Diamond Island, Portland, 1924 Contributed by City of Portland - Planning & Development Item 85452 Zoom 4728px x 3526px - 15.8"w x 11.8"h @ 300dpi | Need a larger size? *Credit line must read: Collections of City of Portland - Planning & Development Image Info Summer Dwelling at W. side Sunset Avenue in Great Diamond Island, Portland, was owned by Josephine W. Ewing in 1924. Show Details