Shipping container By Brian Schmidt | July 1, 2021 | Last updated on August 8, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Shipping container New York Central (and subsidiary Michigan Central) had a large fleet of steel auto cars by the early 1920s. These had 10-foot door openings with 6- and 4-foot platesteel doors. New York Central photo