This stern section (and a stairwell owned by my brother) was part of the
large scale miniature Poseidon seen in the film when the smokestacks exploded
underwater. All the Poseidon miniatures were donated to a Long Beach Naval
Museum. The full Poseidon model is still on display there. The large scale
miniature was just that, large and they were unable to house it inside the
museum. It sat outside rotting and was eventually sold for scrap the few parts
were given to a fan who then sold them to me. The stern section is 36 inches long.