Seatrain Lines, officially the Over-Seas Shipping Company, was a shipping and transportation company conducting operations in the Americas and trans-Pacific regions. Seatrain Lines began intermodal freight transport in December 1928 by transporting entire loaded railroad freight cars between the United States and Cuba. The specially designed ship Seatrain, built in England, was followed in 1932 by two larger ships built in the United States and in 1939 by two additional ships. By the outbreak of World War II the company was operating five ships that became important in the war effort and basis for the design of fifty new ships for military use. Seatrain Lines shut down in 1981 after filing for bankruptcy.The certificate is sold unframed.