Southwest Boat Corporation. Close-up of twin rudders. Boat is upside down. Starboard side rudder closest, half of port one in back. Clamps still attached at connection pionts. Ballard Neg. #5500-25 The Charles Butt Collection
W. H. Ballard, “Progress Photos,” Mount Desert Island Historical Society, accessed November 21, 2024, https://mdihs.digitalarchive.us/items/show/6450.Item 6816
