The image shows the SS Manhattan, an oil tanker that was converted into an icebreaker. It was the first commercial ship to successfully navigate the Northwest Passage in 1969. Originally built in 1962, it was refitted with a reinforced "ice belt" and a new icebreaker bow for its Arctic journey. At the time, it was the largest American merchant vessel and the biggest icebreaker ever constructed. The ship remained in service until 1987, carrying crude oil and grain during its career.