Item 85506 - Chamberlain property, Birchwood Road, Little Diamond Island, Portland, 1924 Item 85506 - Chamberlain property, Birchwood Road, Little Diamond Island, Portland, 1924 Contributed by City of Portland - Planning & Development Item 85506 Zoom 4752px x 3525px - 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 Birchwood Road in Little Diamond Island, Portland, was owned by Fred A. Chamberlain in 1924. Show Details