The first-generation shipping container, also known as the P. S. I Container, was designed to fit onto certain Matchbox vehicles of the late 1970s. Slots in the container's side accept the lifting prongs of the Sambron Jacklift, allowing that truck to lift the container and move it between other vehicles. Holes in the bottom accept short pegs on the Mercedes-Benz Container Truck, helping to hold the container in place. A low ridge around the edge of other vehicles served the same purpose. Neither mechanism held the container very strongly, however, and the shipping container often fell off of its vehicle during all but the most gentle play.
The container received a minor redesign during its life, with the doors becoming molded in place and the roof being cast with the sides, rather than the base. At the same time the legend P.S.I Container (lacking a period after the I) appeared on the base, and the side slots were reconfigured.
The following vehicles accepted the shipping container:
- Mercedes-Benz Container Truck
- Railroad Flat Car
- Flatbed Articulated Trailer (accepted two containers)
The Shipping Container has been issued in the following versions: