Donor mechanism: Bachmann Porter 0-6-0 This is a resin printed shell of an early fireless locomotive built by H.K. Porter for the Public Service Electric company in 1923. Out of the box, the shell is ready to mount onto a Bachmann 0-6-0 Porter chassis and take control of your chemical or powerplant switching jobs! Details include a separate steam inlet valve, rivets, steps, diamond-plate walkways, and printed on exhaust pipes on the front of the vessel.