Item 85432 - Richards property, Valley Avenue, Great Diamond Island, Portland, 1924 Item 85432 - Richards property, Valley Avenue, Great Diamond Island, Portland, 1924 Contributed by City of Portland - Planning & Development Item 85432 Zoom 4728px x 3479px - 15.8"w x 11.6"h @ 300dpi | Need a larger size? *Credit line must read: Collections of City of Portland - Planning & Development Image Info Summer Dwelling at Valley Avenue in Great Diamond Island, Portland, was owned by Alice L. Richards in 1924. Show Details