For 3 rail AC digital operation.
Boiler, chassis and water tanks in die-cast zinc
21-pole interface
Maxon Motor
Smoke generator and sound decoder, either built in or as a retrofit option
Finest metal spoked wheels
True-to-epoch lighting, multipart lamp housing
Spring buffers
Fine engravings and rivets
Many free-standing pipes
Prototypical coal box
Filigree reversing gear
Extra mounted air pump