This photo is the seventh in the series of the largest dragger being constructed by tonnage built at Southwest Boat Corp. In this picture the stern is becoming more visible in the "skeleton" workings. Curved planks appear to be in place on the stern.
Ballard, W.H., “Largest Dragger by tonnage construction series,” Mount Desert Island Historical Society, accessed November 21, 2024, https://mdihs.digitalarchive.us/items/show/6783.Item 7149