This was a gift from Paul Stubing. It is a race off Seal Harbor. There is a mixture of racing classes represented in this picture. There are A boats, Internationals and a wooden bullseye. It could be the start of the race.
Ballard, W.H., “Mixed Racing Classes Off Seal Harbor,” Mount Desert Island Historical Society, accessed November 21, 2024, https://mdihs.digitalarchive.us/items/show/12855.Item 13221