These are a couple of ship's boats. I think they were built to go with Confederacy but I am not sure about that. They are each about four inches long.If you have a very close look at them, I think you will agree that the detail is amazing.
Although practices varied, I think that when the ship model that these will be part of is completed these boats will be stowed on the deck with their tops down. Since the ship will be in a case the detail you see here will not be visible.