Good morning Tiffany,
In that case, it would have to be my old '2046' Hudson.
I discovered that languishing in a dusty corner of my LHS, and decided to bring it back to life. It was in a very sorry state, and I was told that it hadn't been running since the early '70s. But after stripping it down to its component pieces, cleaning every part, replacing the bulb, brushes and springs, rebuilding the e-unit (That WAS fun!) and then putting it all back together, it sprang to life with a growl and dimmed the lights in 3 counties as parts that hadn't moved in 40 years overcame their habitual inertia and discovered the wonders of lubrication.
It now runs proudly at the head of my Pullman service, and works beautifully. The original smoke unit is amazing too, as it puffs out enough smoke (Using Mega-steam.) to cause alarm to my neighbours and nearby aircraft, and runs for days on one filling. I still need to replace the whistle in the tender, as this seems to be beyond repair and emits only the faintest of sighs that are drowned out by the death rattle of the fan motor.
Nicole.