This is a corporate seal which measures 9 and three quarters inches high when the handle is in the "up" position. At the base, it measures 6 inches long by two inches wide (under the seal section).
It is made of metal and is black with gold trim.
When the handle is pressed down and a paper is inserted between the seal discs, the paper is marked with "MDI Historical Society 1931".
“Corporate Seal for the MDI Historical Society,” Mount Desert Island Historical Society, accessed November 21, 2024, https://mdihs.digitalarchive.us/items/show/3020.Item 3386