Item 83974 - Casco Bay Wharf Co. property, Trefethen, Peaks Island, Portland, 1924 Item 83974 - Casco Bay Wharf Co. property, Trefethen, Peaks Island, Portland, 1924 Contributed by City of Portland - Planning & Development Item 83974 Zoom 4782px x 3745px - 15.9"w x 12.5"h @ 300dpi | Need a larger size? *Credit line must read: Collections of City of Portland - Planning & Development Image Info Wharf at Trefethen in Peaks Island, Portland, was owned by Casco Bay Wharf Co. in 1924. Show Details