Item 85454 - Christl property, Sunset Avenue, Great Diamond Island, Portland, 1924 Item 85454 - Christl property, Sunset Avenue, Great Diamond Island, Portland, 1924 Contributed by City of Portland - Planning & Development Item 85454 Zoom 4728px x 3505px - 15.8"w x 11.7"h @ 300dpi | Need a larger size? *Credit line must read: Collections of City of Portland - Planning & Development Image Info Summer Dwelling at Sunset Avenue in Great Diamond Island, Portland, was owned by Maggie M. Christl in 1924. Show Details